Home / 1,417.53-2,126.24-724.19

Finding the Fourth Proportional to 1,417.53, 2,126.24 and 724.19

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Solution

The fourth proportional to 1,417.53, 2,126.24 and 724.19 is: 1,086.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.53 : 2,126.24 = 724.19 : x
  2. Step 2: Convert to fraction form
    1,417.53/2,126.24 = 724.19/x
  3. Step 3: Cross multiply
    1,417.53x = 2,126.24 × 724.19
  4. Step 4: Simplify right side
    1,417.53x = 1,539,801.75
  5. Step 5: Solve for x
    x = 1,539,801.75/1,417.53
  6. Step 6: Final answer
    x = 1,086.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.