Home / 3,719.27-5,125.83-3,612.65

Finding the Fourth Proportional to 3,719.27, 5,125.83 and 3,612.65

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Solution

The fourth proportional to 3,719.27, 5,125.83 and 3,612.65 is: 4,978.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.27 : 5,125.83 = 3,612.65 : x
  2. Step 2: Convert to fraction form
    3,719.27/5,125.83 = 3,612.65/x
  3. Step 3: Cross multiply
    3,719.27x = 5,125.83 × 3,612.65
  4. Step 4: Simplify right side
    3,719.27x = 18,517,829.75
  5. Step 5: Solve for x
    x = 18,517,829.75/3,719.27
  6. Step 6: Final answer
    x = 4,978.89

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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.