Home / 1,217.43-1,824.93-395.08

Finding the Fourth Proportional to 1,217.43, 1,824.93 and 395.08

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Solution

The fourth proportional to 1,217.43, 1,824.93 and 395.08 is: 592.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217.43 : 1,824.93 = 395.08 : x
  2. Step 2: Convert to fraction form
    1,217.43/1,824.93 = 395.08/x
  3. Step 3: Cross multiply
    1,217.43x = 1,824.93 × 395.08
  4. Step 4: Simplify right side
    1,217.43x = 720,988.78
  5. Step 5: Solve for x
    x = 720,988.78/1,217.43
  6. Step 6: Final answer
    x = 592.22

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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.