Home / 2,177.18-3,266.19-790.49

Finding the Fourth Proportional to 2,177.18, 3,266.19 and 790.49

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Solution

The fourth proportional to 2,177.18, 3,266.19 and 790.49 is: 1,185.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.18 : 3,266.19 = 790.49 : x
  2. Step 2: Convert to fraction form
    2,177.18/3,266.19 = 790.49/x
  3. Step 3: Cross multiply
    2,177.18x = 3,266.19 × 790.49
  4. Step 4: Simplify right side
    2,177.18x = 2,581,898.70
  5. Step 5: Solve for x
    x = 2,581,898.70/2,177.18
  6. Step 6: Final answer
    x = 1,185.89

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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.