Home / 1,531.17-2,109.38-1,457.06

Finding the Fourth Proportional to 1,531.17, 2,109.38 and 1,457.06

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Solution

The fourth proportional to 1,531.17, 2,109.38 and 1,457.06 is: 2,007.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.17 : 2,109.38 = 1,457.06 : x
  2. Step 2: Convert to fraction form
    1,531.17/2,109.38 = 1,457.06/x
  3. Step 3: Cross multiply
    1,531.17x = 2,109.38 × 1,457.06
  4. Step 4: Simplify right side
    1,531.17x = 3,073,475.39
  5. Step 5: Solve for x
    x = 3,073,475.39/1,531.17
  6. Step 6: Final answer
    x = 2,007.27

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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.