Home / 5,436.50-8,154.75-1,332.50

Finding the Fourth Proportional to 5,436.50, 8,154.75 and 1,332.50

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Solution

The fourth proportional to 5,436.50, 8,154.75 and 1,332.50 is: 1,998.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.50 : 8,154.75 = 1,332.50 : x
  2. Step 2: Convert to fraction form
    5,436.50/8,154.75 = 1,332.50/x
  3. Step 3: Cross multiply
    5,436.50x = 8,154.75 × 1,332.50
  4. Step 4: Simplify right side
    5,436.50x = 10,866,204.38
  5. Step 5: Solve for x
    x = 10,866,204.38/5,436.50
  6. Step 6: Final answer
    x = 1,998.75

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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.