Home / 3,587.70-4,951.14-2,015.76

Finding the Fourth Proportional to 3,587.70, 4,951.14 and 2,015.76

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Solution

The fourth proportional to 3,587.70, 4,951.14 and 2,015.76 is: 2,781.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.70 : 4,951.14 = 2,015.76 : x
  2. Step 2: Convert to fraction form
    3,587.70/4,951.14 = 2,015.76/x
  3. Step 3: Cross multiply
    3,587.70x = 4,951.14 × 2,015.76
  4. Step 4: Simplify right side
    3,587.70x = 9,980,309.97
  5. Step 5: Solve for x
    x = 9,980,309.97/3,587.70
  6. Step 6: Final answer
    x = 2,781.81

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1.5x scale

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.