Home / 3,587.81-4,951.28-2,015.87

Finding the Fourth Proportional to 3,587.81, 4,951.28 and 2,015.87

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Solution

The fourth proportional to 3,587.81, 4,951.28 and 2,015.87 is: 2,781.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.81 : 4,951.28 = 2,015.87 : x
  2. Step 2: Convert to fraction form
    3,587.81/4,951.28 = 2,015.87/x
  3. Step 3: Cross multiply
    3,587.81x = 4,951.28 × 2,015.87
  4. Step 4: Simplify right side
    3,587.81x = 9,981,136.81
  5. Step 5: Solve for x
    x = 9,981,136.81/3,587.81
  6. Step 6: Final answer
    x = 2,781.96

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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.