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Finding the Fourth Proportional to 4,479.72, 6,686.82 and 4,154.46

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Solution

The fourth proportional to 4,479.72, 6,686.82 and 4,154.46 is: 6,201.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.72 : 6,686.82 = 4,154.46 : x
  2. Step 2: Convert to fraction form
    4,479.72/6,686.82 = 4,154.46/x
  3. Step 3: Cross multiply
    4,479.72x = 6,686.82 × 4,154.46
  4. Step 4: Simplify right side
    4,479.72x = 27,780,126.22
  5. Step 5: Solve for x
    x = 27,780,126.22/4,479.72
  6. Step 6: Final answer
    x = 6,201.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.