Home / 4,885.20-7,338.60-4,755.60

Finding the Fourth Proportional to 4,885.20, 7,338.60 and 4,755.60

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Solution

The fourth proportional to 4,885.20, 7,338.60 and 4,755.60 is: 7,143.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.20 : 7,338.60 = 4,755.60 : x
  2. Step 2: Convert to fraction form
    4,885.20/7,338.60 = 4,755.60/x
  3. Step 3: Cross multiply
    4,885.20x = 7,338.60 × 4,755.60
  4. Step 4: Simplify right side
    4,885.20x = 34,899,446.16
  5. Step 5: Solve for x
    x = 34,899,446.16/4,885.20
  6. Step 6: Final answer
    x = 7,143.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.