Home / 4,979.46-7,459.62-2,781.53

Finding the Fourth Proportional to 4,979.46, 7,459.62 and 2,781.53

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Solution

The fourth proportional to 4,979.46, 7,459.62 and 2,781.53 is: 4,166.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.46 : 7,459.62 = 2,781.53 : x
  2. Step 2: Convert to fraction form
    4,979.46/7,459.62 = 2,781.53/x
  3. Step 3: Cross multiply
    4,979.46x = 7,459.62 × 2,781.53
  4. Step 4: Simplify right side
    4,979.46x = 20,749,156.82
  5. Step 5: Solve for x
    x = 20,749,156.82/4,979.46
  6. Step 6: Final answer
    x = 4,166.95

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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.