Home / 5,551.61-7,648.19-3,869.96

Finding the Fourth Proportional to 5,551.61, 7,648.19 and 3,869.96

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Solution

The fourth proportional to 5,551.61, 7,648.19 and 3,869.96 is: 5,331.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,551.61 : 7,648.19 = 3,869.96 : x
  2. Step 2: Convert to fraction form
    5,551.61/7,648.19 = 3,869.96/x
  3. Step 3: Cross multiply
    5,551.61x = 7,648.19 × 3,869.96
  4. Step 4: Simplify right side
    5,551.61x = 29,598,131.78
  5. Step 5: Solve for x
    x = 29,598,131.78/5,551.61
  6. Step 6: Final answer
    x = 5,331.45

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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.