Home / 5,145.26-7,717.90-1,249.66

Finding the Fourth Proportional to 5,145.26, 7,717.90 and 1,249.66

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Solution

The fourth proportional to 5,145.26, 7,717.90 and 1,249.66 is: 1,874.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.26 : 7,717.90 = 1,249.66 : x
  2. Step 2: Convert to fraction form
    5,145.26/7,717.90 = 1,249.66/x
  3. Step 3: Cross multiply
    5,145.26x = 7,717.90 × 1,249.66
  4. Step 4: Simplify right side
    5,145.26x = 9,644,750.91
  5. Step 5: Solve for x
    x = 9,644,750.91/5,145.26
  6. Step 6: Final answer
    x = 1,874.49

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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.