Home / 2,118.76-3,177.68-1,500.74

Finding the Fourth Proportional to 2,118.76, 3,177.68 and 1,500.74

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Solution

The fourth proportional to 2,118.76, 3,177.68 and 1,500.74 is: 2,250.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.76 : 3,177.68 = 1,500.74 : x
  2. Step 2: Convert to fraction form
    2,118.76/3,177.68 = 1,500.74/x
  3. Step 3: Cross multiply
    2,118.76x = 3,177.68 × 1,500.74
  4. Step 4: Simplify right side
    2,118.76x = 4,768,871.48
  5. Step 5: Solve for x
    x = 4,768,871.48/2,118.76
  6. Step 6: Final answer
    x = 2,250.78

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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.