Home / 6,279.90-9,407.39-4,721.66

Finding the Fourth Proportional to 6,279.90, 9,407.39 and 4,721.66

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Solution

The fourth proportional to 6,279.90, 9,407.39 and 4,721.66 is: 7,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.90 : 9,407.39 = 4,721.66 : x
  2. Step 2: Convert to fraction form
    6,279.90/9,407.39 = 4,721.66/x
  3. Step 3: Cross multiply
    6,279.90x = 9,407.39 × 4,721.66
  4. Step 4: Simplify right side
    6,279.90x = 44,418,426.42
  5. Step 5: Solve for x
    x = 44,418,426.42/6,279.90
  6. Step 6: Final answer
    x = 7,073.11

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1.5x scale

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.