Home / 5,280.68-7,287.10-3,042.64

Finding the Fourth Proportional to 5,280.68, 7,287.10 and 3,042.64

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Solution

The fourth proportional to 5,280.68, 7,287.10 and 3,042.64 is: 4,198.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.68 : 7,287.10 = 3,042.64 : x
  2. Step 2: Convert to fraction form
    5,280.68/7,287.10 = 3,042.64/x
  3. Step 3: Cross multiply
    5,280.68x = 7,287.10 × 3,042.64
  4. Step 4: Simplify right side
    5,280.68x = 22,172,021.94
  5. Step 5: Solve for x
    x = 22,172,021.94/5,280.68
  6. Step 6: Final answer
    x = 4,198.71

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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.