Home / 2,221.27-3,330.07-1,125.07

Finding the Fourth Proportional to 2,221.27, 3,330.07 and 1,125.07

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Solution

The fourth proportional to 2,221.27, 3,330.07 and 1,125.07 is: 1,686.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.27 : 3,330.07 = 1,125.07 : x
  2. Step 2: Convert to fraction form
    2,221.27/3,330.07 = 1,125.07/x
  3. Step 3: Cross multiply
    2,221.27x = 3,330.07 × 1,125.07
  4. Step 4: Simplify right side
    2,221.27x = 3,746,561.85
  5. Step 5: Solve for x
    x = 3,746,561.85/2,221.27
  6. Step 6: Final answer
    x = 1,686.68

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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.