Home / 5,272.90-7,901.15-3,321

Finding the Fourth Proportional to 5,272.90, 7,901.15 and 3,321

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Solution

The fourth proportional to 5,272.90, 7,901.15 and 3,321 is: 4,976.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.90 : 7,901.15 = 3,321 : x
  2. Step 2: Convert to fraction form
    5,272.90/7,901.15 = 3,321/x
  3. Step 3: Cross multiply
    5,272.90x = 7,901.15 × 3,321
  4. Step 4: Simplify right side
    5,272.90x = 26,239,702.55
  5. Step 5: Solve for x
    x = 26,239,702.55/5,272.90
  6. Step 6: Final answer
    x = 4,976.33

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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.