Home / 4,353.12-6,534-3,121.92

Finding the Fourth Proportional to 4,353.12, 6,534 and 3,121.92

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Solution

The fourth proportional to 4,353.12, 6,534 and 3,121.92 is: 4,685.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,353.12 : 6,534 = 3,121.92 : x
  2. Step 2: Convert to fraction form
    4,353.12/6,534 = 3,121.92/x
  3. Step 3: Cross multiply
    4,353.12x = 6,534 × 3,121.92
  4. Step 4: Simplify right side
    4,353.12x = 20,398,625.28
  5. Step 5: Solve for x
    x = 20,398,625.28/4,353.12
  6. Step 6: Final answer
    x = 4,685.98

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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.