Home / 5,778.49-7,974.36-3,125.90

Finding the Fourth Proportional to 5,778.49, 7,974.36 and 3,125.90

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Solution

The fourth proportional to 5,778.49, 7,974.36 and 3,125.90 is: 4,313.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.49 : 7,974.36 = 3,125.90 : x
  2. Step 2: Convert to fraction form
    5,778.49/7,974.36 = 3,125.90/x
  3. Step 3: Cross multiply
    5,778.49x = 7,974.36 × 3,125.90
  4. Step 4: Simplify right side
    5,778.49x = 24,927,051.92
  5. Step 5: Solve for x
    x = 24,927,051.92/5,778.49
  6. Step 6: Final answer
    x = 4,313.77

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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.