Home / 5,139.24-7,092.90-2,902.02

Finding the Fourth Proportional to 5,139.24, 7,092.90 and 2,902.02

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Solution

The fourth proportional to 5,139.24, 7,092.90 and 2,902.02 is: 4,005.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.24 : 7,092.90 = 2,902.02 : x
  2. Step 2: Convert to fraction form
    5,139.24/7,092.90 = 2,902.02/x
  3. Step 3: Cross multiply
    5,139.24x = 7,092.90 × 2,902.02
  4. Step 4: Simplify right side
    5,139.24x = 20,583,737.66
  5. Step 5: Solve for x
    x = 20,583,737.66/5,139.24
  6. Step 6: Final answer
    x = 4,005.21

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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.