Home / 5,678.28-8,508.78-3,368.52

Finding the Fourth Proportional to 5,678.28, 8,508.78 and 3,368.52

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Solution

The fourth proportional to 5,678.28, 8,508.78 and 3,368.52 is: 5,047.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.28 : 8,508.78 = 3,368.52 : x
  2. Step 2: Convert to fraction form
    5,678.28/8,508.78 = 3,368.52/x
  3. Step 3: Cross multiply
    5,678.28x = 8,508.78 × 3,368.52
  4. Step 4: Simplify right side
    5,678.28x = 28,661,995.61
  5. Step 5: Solve for x
    x = 28,661,995.61/5,678.28
  6. Step 6: Final answer
    x = 5,047.65

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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.