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Finding the Fourth Proportional to 1,652.76, 2,279.94 and 1,259.10

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Solution

The fourth proportional to 1,652.76, 2,279.94 and 1,259.10 is: 1,736.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,652.76 : 2,279.94 = 1,259.10 : x
  2. Step 2: Convert to fraction form
    1,652.76/2,279.94 = 1,259.10/x
  3. Step 3: Cross multiply
    1,652.76x = 2,279.94 × 1,259.10
  4. Step 4: Simplify right side
    1,652.76x = 2,870,672.45
  5. Step 5: Solve for x
    x = 2,870,672.45/1,652.76
  6. Step 6: Final answer
    x = 1,736.90

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,653.76, 2,281.32 and 1,260.10
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.