Home / 5,328.22-7,991.25-1,432.66

Finding the Fourth Proportional to 5,328.22, 7,991.25 and 1,432.66

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Solution

The fourth proportional to 5,328.22, 7,991.25 and 1,432.66 is: 2,148.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.22 : 7,991.25 = 1,432.66 : x
  2. Step 2: Convert to fraction form
    5,328.22/7,991.25 = 1,432.66/x
  3. Step 3: Cross multiply
    5,328.22x = 7,991.25 × 1,432.66
  4. Step 4: Simplify right side
    5,328.22x = 11,448,744.23
  5. Step 5: Solve for x
    x = 11,448,744.23/5,328.22
  6. Step 6: Final answer
    x = 2,148.70

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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.