Home / 7,170.87-9,898.62-4,517.78

Finding the Fourth Proportional to 7,170.87, 9,898.62 and 4,517.78

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Solution

The fourth proportional to 7,170.87, 9,898.62 and 4,517.78 is: 6,236.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.87 : 9,898.62 = 4,517.78 : x
  2. Step 2: Convert to fraction form
    7,170.87/9,898.62 = 4,517.78/x
  3. Step 3: Cross multiply
    7,170.87x = 9,898.62 × 4,517.78
  4. Step 4: Simplify right side
    7,170.87x = 44,719,787.46
  5. Step 5: Solve for x
    x = 44,719,787.46/7,170.87
  6. Step 6: Final answer
    x = 6,236.31

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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.