Home / 5,146.40-7,101.94-3,129.08

Finding the Fourth Proportional to 5,146.40, 7,101.94 and 3,129.08

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Solution

The fourth proportional to 5,146.40, 7,101.94 and 3,129.08 is: 4,318.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.40 : 7,101.94 = 3,129.08 : x
  2. Step 2: Convert to fraction form
    5,146.40/7,101.94 = 3,129.08/x
  3. Step 3: Cross multiply
    5,146.40x = 7,101.94 × 3,129.08
  4. Step 4: Simplify right side
    5,146.40x = 22,222,545.30
  5. Step 5: Solve for x
    x = 22,222,545.30/5,146.40
  6. Step 6: Final answer
    x = 4,318.08

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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.