Home / 2,257.57-3,385.85-1,086.98

Finding the Fourth Proportional to 2,257.57, 3,385.85 and 1,086.98

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Solution

The fourth proportional to 2,257.57, 3,385.85 and 1,086.98 is: 1,630.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.57 : 3,385.85 = 1,086.98 : x
  2. Step 2: Convert to fraction form
    2,257.57/3,385.85 = 1,086.98/x
  3. Step 3: Cross multiply
    2,257.57x = 3,385.85 × 1,086.98
  4. Step 4: Simplify right side
    2,257.57x = 3,680,339.92
  5. Step 5: Solve for x
    x = 3,680,339.92/2,257.57
  6. Step 6: Final answer
    x = 1,630.22

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1.5x scale

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.