Home / 2,731.28-4,097.60-882.61

Finding the Fourth Proportional to 2,731.28, 4,097.60 and 882.61

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Solution

The fourth proportional to 2,731.28, 4,097.60 and 882.61 is: 1,324.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.28 : 4,097.60 = 882.61 : x
  2. Step 2: Convert to fraction form
    2,731.28/4,097.60 = 882.61/x
  3. Step 3: Cross multiply
    2,731.28x = 4,097.60 × 882.61
  4. Step 4: Simplify right side
    2,731.28x = 3,616,582.74
  5. Step 5: Solve for x
    x = 3,616,582.74/2,731.28
  6. Step 6: Final answer
    x = 1,324.13

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1.5x scale

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.