Home / 2,138.88-2,951.70-1,254.66

Finding the Fourth Proportional to 2,138.88, 2,951.70 and 1,254.66

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Solution

The fourth proportional to 2,138.88, 2,951.70 and 1,254.66 is: 1,731.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.88 : 2,951.70 = 1,254.66 : x
  2. Step 2: Convert to fraction form
    2,138.88/2,951.70 = 1,254.66/x
  3. Step 3: Cross multiply
    2,138.88x = 2,951.70 × 1,254.66
  4. Step 4: Simplify right side
    2,138.88x = 3,703,379.92
  5. Step 5: Solve for x
    x = 3,703,379.92/2,138.88
  6. Step 6: Final answer
    x = 1,731.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.