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Finding the Fourth Proportional to 2,711.48, 3,743.90 and 1,719.12

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Solution

The fourth proportional to 2,711.48, 3,743.90 and 1,719.12 is: 2,373.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711.48 : 3,743.90 = 1,719.12 : x
  2. Step 2: Convert to fraction form
    2,711.48/3,743.90 = 1,719.12/x
  3. Step 3: Cross multiply
    2,711.48x = 3,743.90 × 1,719.12
  4. Step 4: Simplify right side
    2,711.48x = 6,436,213.37
  5. Step 5: Solve for x
    x = 6,436,213.37/2,711.48
  6. Step 6: Final answer
    x = 2,373.69

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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.