Home / 5,176.97-7,765.45-1,281.38

Finding the Fourth Proportional to 5,176.97, 7,765.45 and 1,281.38

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Solution

The fourth proportional to 5,176.97, 7,765.45 and 1,281.38 is: 1,922.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.97 : 7,765.45 = 1,281.38 : x
  2. Step 2: Convert to fraction form
    5,176.97/7,765.45 = 1,281.38/x
  3. Step 3: Cross multiply
    5,176.97x = 7,765.45 × 1,281.38
  4. Step 4: Simplify right side
    5,176.97x = 9,950,457.50
  5. Step 5: Solve for x
    x = 9,950,457.50/5,176.97
  6. Step 6: Final answer
    x = 1,922.06

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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.