Home / 5,775.30-7,969.89-3,122.71

Finding the Fourth Proportional to 5,775.30, 7,969.89 and 3,122.71

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Solution

The fourth proportional to 5,775.30, 7,969.89 and 3,122.71 is: 4,309.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.30 : 7,969.89 = 3,122.71 : x
  2. Step 2: Convert to fraction form
    5,775.30/7,969.89 = 3,122.71/x
  3. Step 3: Cross multiply
    5,775.30x = 7,969.89 × 3,122.71
  4. Step 4: Simplify right side
    5,775.30x = 24,887,655.20
  5. Step 5: Solve for x
    x = 24,887,655.20/5,775.30
  6. Step 6: Final answer
    x = 4,309.33

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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.