Home / 2,239.92-3,355.26-1,312.66

Finding the Fourth Proportional to 2,239.92, 3,355.26 and 1,312.66

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Solution

The fourth proportional to 2,239.92, 3,355.26 and 1,312.66 is: 1,966.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.92 : 3,355.26 = 1,312.66 : x
  2. Step 2: Convert to fraction form
    2,239.92/3,355.26 = 1,312.66/x
  3. Step 3: Cross multiply
    2,239.92x = 3,355.26 × 1,312.66
  4. Step 4: Simplify right side
    2,239.92x = 4,404,314.86
  5. Step 5: Solve for x
    x = 4,404,314.86/2,239.92
  6. Step 6: Final answer
    x = 1,966.28

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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.