Home / 7,128.52-10,693.66-2,449.48

Finding the Fourth Proportional to 7,128.52, 10,693.66 and 2,449.48

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Solution

The fourth proportional to 7,128.52, 10,693.66 and 2,449.48 is: 3,674.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.52 : 10,693.66 = 2,449.48 : x
  2. Step 2: Convert to fraction form
    7,128.52/10,693.66 = 2,449.48/x
  3. Step 3: Cross multiply
    7,128.52x = 10,693.66 × 2,449.48
  4. Step 4: Simplify right side
    7,128.52x = 26,193,906.30
  5. Step 5: Solve for x
    x = 26,193,906.30/7,128.52
  6. Step 6: Final answer
    x = 3,674.52

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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.