Home / 5,470.72-8,211.54-2,551.08

Finding the Fourth Proportional to 5,470.72, 8,211.54 and 2,551.08

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Solution

The fourth proportional to 5,470.72, 8,211.54 and 2,551.08 is: 3,829.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.72 : 8,211.54 = 2,551.08 : x
  2. Step 2: Convert to fraction form
    5,470.72/8,211.54 = 2,551.08/x
  3. Step 3: Cross multiply
    5,470.72x = 8,211.54 × 2,551.08
  4. Step 4: Simplify right side
    5,470.72x = 20,948,295.46
  5. Step 5: Solve for x
    x = 20,948,295.46/5,470.72
  6. Step 6: Final answer
    x = 3,829.17

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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.