Home / 5,140.07-7,710.25-2,020.87

Finding the Fourth Proportional to 5,140.07, 7,710.25 and 2,020.87

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Solution

The fourth proportional to 5,140.07, 7,710.25 and 2,020.87 is: 3,031.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.07 : 7,710.25 = 2,020.87 : x
  2. Step 2: Convert to fraction form
    5,140.07/7,710.25 = 2,020.87/x
  3. Step 3: Cross multiply
    5,140.07x = 7,710.25 × 2,020.87
  4. Step 4: Simplify right side
    5,140.07x = 15,581,412.92
  5. Step 5: Solve for x
    x = 15,581,412.92/5,140.07
  6. Step 6: Final answer
    x = 3,031.36

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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.