Home / 5,519.12-7,612.53-3,747.65

Finding the Fourth Proportional to 5,519.12, 7,612.53 and 3,747.65

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Solution

The fourth proportional to 5,519.12, 7,612.53 and 3,747.65 is: 5,169.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.12 : 7,612.53 = 3,747.65 : x
  2. Step 2: Convert to fraction form
    5,519.12/7,612.53 = 3,747.65/x
  3. Step 3: Cross multiply
    5,519.12x = 7,612.53 × 3,747.65
  4. Step 4: Simplify right side
    5,519.12x = 28,529,098.05
  5. Step 5: Solve for x
    x = 28,529,098.05/5,519.12
  6. Step 6: Final answer
    x = 5,169.14

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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.