Home / 3,742.78-5,614.99-1,145.92

Finding the Fourth Proportional to 3,742.78, 5,614.99 and 1,145.92

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Solution

The fourth proportional to 3,742.78, 5,614.99 and 1,145.92 is: 1,719.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.78 : 5,614.99 = 1,145.92 : x
  2. Step 2: Convert to fraction form
    3,742.78/5,614.99 = 1,145.92/x
  3. Step 3: Cross multiply
    3,742.78x = 5,614.99 × 1,145.92
  4. Step 4: Simplify right side
    3,742.78x = 6,434,329.34
  5. Step 5: Solve for x
    x = 6,434,329.34/3,742.78
  6. Step 6: Final answer
    x = 1,719.13

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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.