Home / 5,177.19-7,765.68-1,281.54

Finding the Fourth Proportional to 5,177.19, 7,765.68 and 1,281.54

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Solution

The fourth proportional to 5,177.19, 7,765.68 and 1,281.54 is: 1,922.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.19 : 7,765.68 = 1,281.54 : x
  2. Step 2: Convert to fraction form
    5,177.19/7,765.68 = 1,281.54/x
  3. Step 3: Cross multiply
    5,177.19x = 7,765.68 × 1,281.54
  4. Step 4: Simplify right side
    5,177.19x = 9,952,029.55
  5. Step 5: Solve for x
    x = 9,952,029.55/5,177.19
  6. Step 6: Final answer
    x = 1,922.28

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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.