Home / 5,140.71-7,710.93-1,442.97

Finding the Fourth Proportional to 5,140.71, 7,710.93 and 1,442.97

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Solution

The fourth proportional to 5,140.71, 7,710.93 and 1,442.97 is: 2,164.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.71 : 7,710.93 = 1,442.97 : x
  2. Step 2: Convert to fraction form
    5,140.71/7,710.93 = 1,442.97/x
  3. Step 3: Cross multiply
    5,140.71x = 7,710.93 × 1,442.97
  4. Step 4: Simplify right side
    5,140.71x = 11,126,640.66
  5. Step 5: Solve for x
    x = 11,126,640.66/5,140.71
  6. Step 6: Final answer
    x = 2,164.42

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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.