Home / 3,535.20-4,877.88-2,137.92

Finding the Fourth Proportional to 3,535.20, 4,877.88 and 2,137.92

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Solution

The fourth proportional to 3,535.20, 4,877.88 and 2,137.92 is: 2,949.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,535.20 : 4,877.88 = 2,137.92 : x
  2. Step 2: Convert to fraction form
    3,535.20/4,877.88 = 2,137.92/x
  3. Step 3: Cross multiply
    3,535.20x = 4,877.88 × 2,137.92
  4. Step 4: Simplify right side
    3,535.20x = 10,428,517.21
  5. Step 5: Solve for x
    x = 10,428,517.21/3,535.20
  6. Step 6: Final answer
    x = 2,949.91

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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.