Home / 5,778.76-8,670.31-3,440.11

Finding the Fourth Proportional to 5,778.76, 8,670.31 and 3,440.11

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Solution

The fourth proportional to 5,778.76, 8,670.31 and 3,440.11 is: 5,161.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.76 : 8,670.31 = 3,440.11 : x
  2. Step 2: Convert to fraction form
    5,778.76/8,670.31 = 3,440.11/x
  3. Step 3: Cross multiply
    5,778.76x = 8,670.31 × 3,440.11
  4. Step 4: Simplify right side
    5,778.76x = 29,826,789.86
  5. Step 5: Solve for x
    x = 29,826,789.86/5,778.76
  6. Step 6: Final answer
    x = 5,161.45

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1.5x scale

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.