Home / 5,778.61-7,976.75-3,895.56

Finding the Fourth Proportional to 5,778.61, 7,976.75 and 3,895.56

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Solution

The fourth proportional to 5,778.61, 7,976.75 and 3,895.56 is: 5,377.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.61 : 7,976.75 = 3,895.56 : x
  2. Step 2: Convert to fraction form
    5,778.61/7,976.75 = 3,895.56/x
  3. Step 3: Cross multiply
    5,778.61x = 7,976.75 × 3,895.56
  4. Step 4: Simplify right side
    5,778.61x = 31,073,888.75
  5. Step 5: Solve for x
    x = 31,073,888.75/5,778.61
  6. Step 6: Final answer
    x = 5,377.40

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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.