Home / 3,587.78-4,951.29-2,015.88

Finding the Fourth Proportional to 3,587.78, 4,951.29 and 2,015.88

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Solution

The fourth proportional to 3,587.78, 4,951.29 and 2,015.88 is: 2,782.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.78 : 4,951.29 = 2,015.88 : x
  2. Step 2: Convert to fraction form
    3,587.78/4,951.29 = 2,015.88/x
  3. Step 3: Cross multiply
    3,587.78x = 4,951.29 × 2,015.88
  4. Step 4: Simplify right side
    3,587.78x = 9,981,206.49
  5. Step 5: Solve for x
    x = 9,981,206.49/3,587.78
  6. Step 6: Final answer
    x = 2,782.00

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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.