Home / 1,752.57-2,421.56-1,531.17

Finding the Fourth Proportional to 1,752.57, 2,421.56 and 1,531.17

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Solution

The fourth proportional to 1,752.57, 2,421.56 and 1,531.17 is: 2,115.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752.57 : 2,421.56 = 1,531.17 : x
  2. Step 2: Convert to fraction form
    1,752.57/2,421.56 = 1,531.17/x
  3. Step 3: Cross multiply
    1,752.57x = 2,421.56 × 1,531.17
  4. Step 4: Simplify right side
    1,752.57x = 3,707,823.85
  5. Step 5: Solve for x
    x = 3,707,823.85/1,752.57
  6. Step 6: Final answer
    x = 2,115.65

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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.