Home / 2,612.18-3,917.12-1,225.92

Finding the Fourth Proportional to 2,612.18, 3,917.12 and 1,225.92

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Solution

The fourth proportional to 2,612.18, 3,917.12 and 1,225.92 is: 1,838.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.18 : 3,917.12 = 1,225.92 : x
  2. Step 2: Convert to fraction form
    2,612.18/3,917.12 = 1,225.92/x
  3. Step 3: Cross multiply
    2,612.18x = 3,917.12 × 1,225.92
  4. Step 4: Simplify right side
    2,612.18x = 4,802,062.63
  5. Step 5: Solve for x
    x = 4,802,062.63/2,612.18
  6. Step 6: Final answer
    x = 1,838.33

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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.