Home / 2,002.02-2,761.41-1,338.90

Finding the Fourth Proportional to 2,002.02, 2,761.41 and 1,338.90

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Solution

The fourth proportional to 2,002.02, 2,761.41 and 1,338.90 is: 1,846.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,002.02 : 2,761.41 = 1,338.90 : x
  2. Step 2: Convert to fraction form
    2,002.02/2,761.41 = 1,338.90/x
  3. Step 3: Cross multiply
    2,002.02x = 2,761.41 × 1,338.90
  4. Step 4: Simplify right side
    2,002.02x = 3,697,251.85
  5. Step 5: Solve for x
    x = 3,697,251.85/2,002.02
  6. Step 6: Final answer
    x = 1,846.76

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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.