Home / 3,125.10-4,691.17-1,971.50

Finding the Fourth Proportional to 3,125.10, 4,691.17 and 1,971.50

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Solution

The fourth proportional to 3,125.10, 4,691.17 and 1,971.50 is: 2,959.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.10 : 4,691.17 = 1,971.50 : x
  2. Step 2: Convert to fraction form
    3,125.10/4,691.17 = 1,971.50/x
  3. Step 3: Cross multiply
    3,125.10x = 4,691.17 × 1,971.50
  4. Step 4: Simplify right side
    3,125.10x = 9,248,641.66
  5. Step 5: Solve for x
    x = 9,248,641.66/3,125.10
  6. Step 6: Final answer
    x = 2,959.47

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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.