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Finding the Fourth Proportional to 7,886.76, 10,883.68 and 4,349.90

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Solution

The fourth proportional to 7,886.76, 10,883.68 and 4,349.90 is: 6,002.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.76 : 10,883.68 = 4,349.90 : x
  2. Step 2: Convert to fraction form
    7,886.76/10,883.68 = 4,349.90/x
  3. Step 3: Cross multiply
    7,886.76x = 10,883.68 × 4,349.90
  4. Step 4: Simplify right side
    7,886.76x = 47,342,854.34
  5. Step 5: Solve for x
    x = 47,342,854.34/7,886.76
  6. Step 6: Final answer
    x = 6,002.83

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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.