Home / 2,177.43-3,004.85-1,281.69

Finding the Fourth Proportional to 2,177.43, 3,004.85 and 1,281.69

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Solution

The fourth proportional to 2,177.43, 3,004.85 and 1,281.69 is: 1,768.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.43 : 3,004.85 = 1,281.69 : x
  2. Step 2: Convert to fraction form
    2,177.43/3,004.85 = 1,281.69/x
  3. Step 3: Cross multiply
    2,177.43x = 3,004.85 × 1,281.69
  4. Step 4: Simplify right side
    2,177.43x = 3,851,279.79
  5. Step 5: Solve for x
    x = 3,851,279.79/2,177.43
  6. Step 6: Final answer
    x = 1,768.73

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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.