Home / 6,279.72-8,666.16-3,447.21

Finding the Fourth Proportional to 6,279.72, 8,666.16 and 3,447.21

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Solution

The fourth proportional to 6,279.72, 8,666.16 and 3,447.21 is: 4,757.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.72 : 8,666.16 = 3,447.21 : x
  2. Step 2: Convert to fraction form
    6,279.72/8,666.16 = 3,447.21/x
  3. Step 3: Cross multiply
    6,279.72x = 8,666.16 × 3,447.21
  4. Step 4: Simplify right side
    6,279.72x = 29,874,073.41
  5. Step 5: Solve for x
    x = 29,874,073.41/6,279.72
  6. Step 6: Final answer
    x = 4,757.23

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1.5x scale

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.