Home / 2,220.58-3,333.94-1,125.71

Finding the Fourth Proportional to 2,220.58, 3,333.94 and 1,125.71

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Solution

The fourth proportional to 2,220.58, 3,333.94 and 1,125.71 is: 1,690.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.58 : 3,333.94 = 1,125.71 : x
  2. Step 2: Convert to fraction form
    2,220.58/3,333.94 = 1,125.71/x
  3. Step 3: Cross multiply
    2,220.58x = 3,333.94 × 1,125.71
  4. Step 4: Simplify right side
    2,220.58x = 3,753,049.60
  5. Step 5: Solve for x
    x = 3,753,049.60/2,220.58
  6. Step 6: Final answer
    x = 1,690.12

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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.