Home / 1,718.11-2,575.10-1,125.43

Finding the Fourth Proportional to 1,718.11, 2,575.10 and 1,125.43

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Solution

The fourth proportional to 1,718.11, 2,575.10 and 1,125.43 is: 1,686.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718.11 : 2,575.10 = 1,125.43 : x
  2. Step 2: Convert to fraction form
    1,718.11/2,575.10 = 1,125.43/x
  3. Step 3: Cross multiply
    1,718.11x = 2,575.10 × 1,125.43
  4. Step 4: Simplify right side
    1,718.11x = 2,898,091.17
  5. Step 5: Solve for x
    x = 2,898,091.17/1,718.11
  6. Step 6: Final answer
    x = 1,686.79

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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.