Home / 1,325.37-1,817.39-1,279.02

Finding the Fourth Proportional to 1,325.37, 1,817.39 and 1,279.02

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Solution

The fourth proportional to 1,325.37, 1,817.39 and 1,279.02 is: 1,753.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.37 : 1,817.39 = 1,279.02 : x
  2. Step 2: Convert to fraction form
    1,325.37/1,817.39 = 1,279.02/x
  3. Step 3: Cross multiply
    1,325.37x = 1,817.39 × 1,279.02
  4. Step 4: Simplify right side
    1,325.37x = 2,324,471.76
  5. Step 5: Solve for x
    x = 2,324,471.76/1,325.37
  6. Step 6: Final answer
    x = 1,753.83

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.