Home / 5,902.80-8,851.20-3,438.12

Finding the Fourth Proportional to 5,902.80, 8,851.20 and 3,438.12

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Solution

The fourth proportional to 5,902.80, 8,851.20 and 3,438.12 is: 5,155.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,902.80 : 8,851.20 = 3,438.12 : x
  2. Step 2: Convert to fraction form
    5,902.80/8,851.20 = 3,438.12/x
  3. Step 3: Cross multiply
    5,902.80x = 8,851.20 × 3,438.12
  4. Step 4: Simplify right side
    5,902.80x = 30,431,487.74
  5. Step 5: Solve for x
    x = 30,431,487.74/5,902.80
  6. Step 6: Final answer
    x = 5,155.43

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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.