Home / 3,101.02-4,279.40-1,774.76

Finding the Fourth Proportional to 3,101.02, 4,279.40 and 1,774.76

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Solution

The fourth proportional to 3,101.02, 4,279.40 and 1,774.76 is: 2,449.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.02 : 4,279.40 = 1,774.76 : x
  2. Step 2: Convert to fraction form
    3,101.02/4,279.40 = 1,774.76/x
  3. Step 3: Cross multiply
    3,101.02x = 4,279.40 × 1,774.76
  4. Step 4: Simplify right side
    3,101.02x = 7,594,907.94
  5. Step 5: Solve for x
    x = 7,594,907.94/3,101.02
  6. Step 6: Final answer
    x = 2,449.16

Related Problems

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Half scale
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Double scale
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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.