Home / 5,418.55-7,474.88-3,740.90

Finding the Fourth Proportional to 5,418.55, 7,474.88 and 3,740.90

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Solution

The fourth proportional to 5,418.55, 7,474.88 and 3,740.90 is: 5,160.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.55 : 7,474.88 = 3,740.90 : x
  2. Step 2: Convert to fraction form
    5,418.55/7,474.88 = 3,740.90/x
  3. Step 3: Cross multiply
    5,418.55x = 7,474.88 × 3,740.90
  4. Step 4: Simplify right side
    5,418.55x = 27,962,750.57
  5. Step 5: Solve for x
    x = 27,962,750.57/5,418.55
  6. Step 6: Final answer
    x = 5,160.56

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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.