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Finding the Fourth Proportional to 4,549.97, 6,279.57 and 2,978.97

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Solution

The fourth proportional to 4,549.97, 6,279.57 and 2,978.97 is: 4,111.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,549.97 : 6,279.57 = 2,978.97 : x
  2. Step 2: Convert to fraction form
    4,549.97/6,279.57 = 2,978.97/x
  3. Step 3: Cross multiply
    4,549.97x = 6,279.57 × 2,978.97
  4. Step 4: Simplify right side
    4,549.97x = 18,706,650.64
  5. Step 5: Solve for x
    x = 18,706,650.64/4,549.97
  6. Step 6: Final answer
    x = 4,111.38

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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.