Home / 1,487.27-2,221.14-1,195.22

Finding the Fourth Proportional to 1,487.27, 2,221.14 and 1,195.22

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Solution

The fourth proportional to 1,487.27, 2,221.14 and 1,195.22 is: 1,784.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.27 : 2,221.14 = 1,195.22 : x
  2. Step 2: Convert to fraction form
    1,487.27/2,221.14 = 1,195.22/x
  3. Step 3: Cross multiply
    1,487.27x = 2,221.14 × 1,195.22
  4. Step 4: Simplify right side
    1,487.27x = 2,654,739.85
  5. Step 5: Solve for x
    x = 2,654,739.85/1,487.27
  6. Step 6: Final answer
    x = 1,784.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.