Home / 1,632.22-2,449.34-707.78

Finding the Fourth Proportional to 1,632.22, 2,449.34 and 707.78

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Solution

The fourth proportional to 1,632.22, 2,449.34 and 707.78 is: 1,062.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,632.22 : 2,449.34 = 707.78 : x
  2. Step 2: Convert to fraction form
    1,632.22/2,449.34 = 707.78/x
  3. Step 3: Cross multiply
    1,632.22x = 2,449.34 × 707.78
  4. Step 4: Simplify right side
    1,632.22x = 1,733,593.87
  5. Step 5: Solve for x
    x = 1,733,593.87/1,632.22
  6. Step 6: Final answer
    x = 1,062.11

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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.