Home / 2,479.85-3,719.66-1,092.81

Finding the Fourth Proportional to 2,479.85, 3,719.66 and 1,092.81

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Solution

The fourth proportional to 2,479.85, 3,719.66 and 1,092.81 is: 1,639.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.85 : 3,719.66 = 1,092.81 : x
  2. Step 2: Convert to fraction form
    2,479.85/3,719.66 = 1,092.81/x
  3. Step 3: Cross multiply
    2,479.85x = 3,719.66 × 1,092.81
  4. Step 4: Simplify right side
    2,479.85x = 4,064,876.18
  5. Step 5: Solve for x
    x = 4,064,876.18/2,479.85
  6. Step 6: Final answer
    x = 1,639.17

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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.