Home / 5,189.91-7,784.85-3,110.55

Finding the Fourth Proportional to 5,189.91, 7,784.85 and 3,110.55

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Solution

The fourth proportional to 5,189.91, 7,784.85 and 3,110.55 is: 4,665.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.91 : 7,784.85 = 3,110.55 : x
  2. Step 2: Convert to fraction form
    5,189.91/7,784.85 = 3,110.55/x
  3. Step 3: Cross multiply
    5,189.91x = 7,784.85 × 3,110.55
  4. Step 4: Simplify right side
    5,189.91x = 24,215,165.17
  5. Step 5: Solve for x
    x = 24,215,165.17/5,189.91
  6. Step 6: Final answer
    x = 4,665.82

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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.