Home / 5,548.80-8,318.16-2,085.12

Finding the Fourth Proportional to 5,548.80, 8,318.16 and 2,085.12

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Solution

The fourth proportional to 5,548.80, 8,318.16 and 2,085.12 is: 3,125.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,548.80 : 8,318.16 = 2,085.12 : x
  2. Step 2: Convert to fraction form
    5,548.80/8,318.16 = 2,085.12/x
  3. Step 3: Cross multiply
    5,548.80x = 8,318.16 × 2,085.12
  4. Step 4: Simplify right side
    5,548.80x = 17,344,361.78
  5. Step 5: Solve for x
    x = 17,344,361.78/5,548.80
  6. Step 6: Final answer
    x = 3,125.79

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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.