Home / 5,175.12-7,760.88-1,711.44

Finding the Fourth Proportional to 5,175.12, 7,760.88 and 1,711.44

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Solution

The fourth proportional to 5,175.12, 7,760.88 and 1,711.44 is: 2,566.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.12 : 7,760.88 = 1,711.44 : x
  2. Step 2: Convert to fraction form
    5,175.12/7,760.88 = 1,711.44/x
  3. Step 3: Cross multiply
    5,175.12x = 7,760.88 × 1,711.44
  4. Step 4: Simplify right side
    5,175.12x = 13,282,280.47
  5. Step 5: Solve for x
    x = 13,282,280.47/5,175.12
  6. Step 6: Final answer
    x = 2,566.56

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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.