Home / 5,139.45-7,092.86-2,901.87

Finding the Fourth Proportional to 5,139.45, 7,092.86 and 2,901.87

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Solution

The fourth proportional to 5,139.45, 7,092.86 and 2,901.87 is: 4,004.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.45 : 7,092.86 = 2,901.87 : x
  2. Step 2: Convert to fraction form
    5,139.45/7,092.86 = 2,901.87/x
  3. Step 3: Cross multiply
    5,139.45x = 7,092.86 × 2,901.87
  4. Step 4: Simplify right side
    5,139.45x = 20,582,543.14
  5. Step 5: Solve for x
    x = 20,582,543.14/5,139.45
  6. Step 6: Final answer
    x = 4,004.81

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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.