Home / 2,732.15-4,098.20-784.35

Finding the Fourth Proportional to 2,732.15, 4,098.20 and 784.35

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Solution

The fourth proportional to 2,732.15, 4,098.20 and 784.35 is: 1,176.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,732.15 : 4,098.20 = 784.35 : x
  2. Step 2: Convert to fraction form
    2,732.15/4,098.20 = 784.35/x
  3. Step 3: Cross multiply
    2,732.15x = 4,098.20 × 784.35
  4. Step 4: Simplify right side
    2,732.15x = 3,214,419.25
  5. Step 5: Solve for x
    x = 3,214,419.25/2,732.15
  6. Step 6: Final answer
    x = 1,176.52

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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.