Home / 5,140.91-7,710.15-2,365.85

Finding the Fourth Proportional to 5,140.91, 7,710.15 and 2,365.85

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Solution

The fourth proportional to 5,140.91, 7,710.15 and 2,365.85 is: 3,548.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.91 : 7,710.15 = 2,365.85 : x
  2. Step 2: Convert to fraction form
    5,140.91/7,710.15 = 2,365.85/x
  3. Step 3: Cross multiply
    5,140.91x = 7,710.15 × 2,365.85
  4. Step 4: Simplify right side
    5,140.91x = 18,241,058.38
  5. Step 5: Solve for x
    x = 18,241,058.38/5,140.91
  6. Step 6: Final answer
    x = 3,548.22

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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.