Home / 5,471.55-7,548.84-3,318.78

Finding the Fourth Proportional to 5,471.55, 7,548.84 and 3,318.78

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Solution

The fourth proportional to 5,471.55, 7,548.84 and 3,318.78 is: 4,578.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471.55 : 7,548.84 = 3,318.78 : x
  2. Step 2: Convert to fraction form
    5,471.55/7,548.84 = 3,318.78/x
  3. Step 3: Cross multiply
    5,471.55x = 7,548.84 × 3,318.78
  4. Step 4: Simplify right side
    5,471.55x = 25,052,967.52
  5. Step 5: Solve for x
    x = 25,052,967.52/5,471.55
  6. Step 6: Final answer
    x = 4,578.77

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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.