Home / 3,515.11-5,270.67-1,432.68

Finding the Fourth Proportional to 3,515.11, 5,270.67 and 1,432.68

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Solution

The fourth proportional to 3,515.11, 5,270.67 and 1,432.68 is: 2,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.11 : 5,270.67 = 1,432.68 : x
  2. Step 2: Convert to fraction form
    3,515.11/5,270.67 = 1,432.68/x
  3. Step 3: Cross multiply
    3,515.11x = 5,270.67 × 1,432.68
  4. Step 4: Simplify right side
    3,515.11x = 7,551,154.46
  5. Step 5: Solve for x
    x = 7,551,154.46/3,515.11
  6. Step 6: Final answer
    x = 2,148.20

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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.