Home / 4,781.61-7,170.66-1,660.82

Finding the Fourth Proportional to 4,781.61, 7,170.66 and 1,660.82

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Solution

The fourth proportional to 4,781.61, 7,170.66 and 1,660.82 is: 2,490.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.61 : 7,170.66 = 1,660.82 : x
  2. Step 2: Convert to fraction form
    4,781.61/7,170.66 = 1,660.82/x
  3. Step 3: Cross multiply
    4,781.61x = 7,170.66 × 1,660.82
  4. Step 4: Simplify right side
    4,781.61x = 11,909,139.69
  5. Step 5: Solve for x
    x = 11,909,139.69/4,781.61
  6. Step 6: Final answer
    x = 2,490.61

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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.