Home / 5,177.02-7,765.43-1,281.43

Finding the Fourth Proportional to 5,177.02, 7,765.43 and 1,281.43

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Solution

The fourth proportional to 5,177.02, 7,765.43 and 1,281.43 is: 1,922.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.02 : 7,765.43 = 1,281.43 : x
  2. Step 2: Convert to fraction form
    5,177.02/7,765.43 = 1,281.43/x
  3. Step 3: Cross multiply
    5,177.02x = 7,765.43 × 1,281.43
  4. Step 4: Simplify right side
    5,177.02x = 9,950,816.14
  5. Step 5: Solve for x
    x = 9,950,816.14/5,177.02
  6. Step 6: Final answer
    x = 1,922.11

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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.