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Finding the Fourth Proportional to 7,885.62, 10,881.90 and 4,348.80

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Solution

The fourth proportional to 7,885.62, 10,881.90 and 4,348.80 is: 6,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.62 : 10,881.90 = 4,348.80 : x
  2. Step 2: Convert to fraction form
    7,885.62/10,881.90 = 4,348.80/x
  3. Step 3: Cross multiply
    7,885.62x = 10,881.90 × 4,348.80
  4. Step 4: Simplify right side
    7,885.62x = 47,323,206.72
  5. Step 5: Solve for x
    x = 47,323,206.72/7,885.62
  6. Step 6: Final answer
    x = 6,001.20

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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.