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Finding the Fourth Proportional to 5,518, 7,614.06 and 3,279.06

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Solution

The fourth proportional to 5,518, 7,614.06 and 3,279.06 is: 4,524.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518 : 7,614.06 = 3,279.06 : x
  2. Step 2: Convert to fraction form
    5,518/7,614.06 = 3,279.06/x
  3. Step 3: Cross multiply
    5,518x = 7,614.06 × 3,279.06
  4. Step 4: Simplify right side
    5,518x = 24,966,959.58
  5. Step 5: Solve for x
    x = 24,966,959.58/5,518
  6. Step 6: Final answer
    x = 4,524.64

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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.