Home / 5,778.31-7,974.06-3,125.72

Finding the Fourth Proportional to 5,778.31, 7,974.06 and 3,125.72

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Solution

The fourth proportional to 5,778.31, 7,974.06 and 3,125.72 is: 4,313.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.31 : 7,974.06 = 3,125.72 : x
  2. Step 2: Convert to fraction form
    5,778.31/7,974.06 = 3,125.72/x
  3. Step 3: Cross multiply
    5,778.31x = 7,974.06 × 3,125.72
  4. Step 4: Simplify right side
    5,778.31x = 24,924,678.82
  5. Step 5: Solve for x
    x = 24,924,678.82/5,778.31
  6. Step 6: Final answer
    x = 4,313.49

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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.