Home / 3,718.26-5,578.30-1,864.78

Finding the Fourth Proportional to 3,718.26, 5,578.30 and 1,864.78

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Solution

The fourth proportional to 3,718.26, 5,578.30 and 1,864.78 is: 2,797.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.26 : 5,578.30 = 1,864.78 : x
  2. Step 2: Convert to fraction form
    3,718.26/5,578.30 = 1,864.78/x
  3. Step 3: Cross multiply
    3,718.26x = 5,578.30 × 1,864.78
  4. Step 4: Simplify right side
    3,718.26x = 10,402,302.27
  5. Step 5: Solve for x
    x = 10,402,302.27/3,718.26
  6. Step 6: Final answer
    x = 2,797.63

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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.