Home / 5,269.38-7,904.10-3,078.72

Finding the Fourth Proportional to 5,269.38, 7,904.10 and 3,078.72

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Solution

The fourth proportional to 5,269.38, 7,904.10 and 3,078.72 is: 4,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,269.38 : 7,904.10 = 3,078.72 : x
  2. Step 2: Convert to fraction form
    5,269.38/7,904.10 = 3,078.72/x
  3. Step 3: Cross multiply
    5,269.38x = 7,904.10 × 3,078.72
  4. Step 4: Simplify right side
    5,269.38x = 24,334,510.75
  5. Step 5: Solve for x
    x = 24,334,510.75/5,269.38
  6. Step 6: Final answer
    x = 4,618.10

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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.