Home / 3,125.98-4,689.17-1,045.90

Finding the Fourth Proportional to 3,125.98, 4,689.17 and 1,045.90

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Solution

The fourth proportional to 3,125.98, 4,689.17 and 1,045.90 is: 1,568.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.98 : 4,689.17 = 1,045.90 : x
  2. Step 2: Convert to fraction form
    3,125.98/4,689.17 = 1,045.90/x
  3. Step 3: Cross multiply
    3,125.98x = 4,689.17 × 1,045.90
  4. Step 4: Simplify right side
    3,125.98x = 4,904,402.90
  5. Step 5: Solve for x
    x = 4,904,402.90/3,125.98
  6. Step 6: Final answer
    x = 1,568.92

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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.