Home / 1,877.38-2,589.81-1,169.11

Finding the Fourth Proportional to 1,877.38, 2,589.81 and 1,169.11

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Solution

The fourth proportional to 1,877.38, 2,589.81 and 1,169.11 is: 1,612.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.38 : 2,589.81 = 1,169.11 : x
  2. Step 2: Convert to fraction form
    1,877.38/2,589.81 = 1,169.11/x
  3. Step 3: Cross multiply
    1,877.38x = 2,589.81 × 1,169.11
  4. Step 4: Simplify right side
    1,877.38x = 3,027,766.92
  5. Step 5: Solve for x
    x = 3,027,766.92/1,877.38
  6. Step 6: Final answer
    x = 1,612.76

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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.