Home / 5,146.73-7,720.10-1,251.13

Finding the Fourth Proportional to 5,146.73, 7,720.10 and 1,251.13

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Solution

The fourth proportional to 5,146.73, 7,720.10 and 1,251.13 is: 1,876.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.73 : 7,720.10 = 1,251.13 : x
  2. Step 2: Convert to fraction form
    5,146.73/7,720.10 = 1,251.13/x
  3. Step 3: Cross multiply
    5,146.73x = 7,720.10 × 1,251.13
  4. Step 4: Simplify right side
    5,146.73x = 9,658,848.71
  5. Step 5: Solve for x
    x = 9,658,848.71/5,146.73
  6. Step 6: Final answer
    x = 1,876.70

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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.