Home / 3,613.43-5,420.75-1,148.06

Finding the Fourth Proportional to 3,613.43, 5,420.75 and 1,148.06

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Solution

The fourth proportional to 3,613.43, 5,420.75 and 1,148.06 is: 1,722.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.43 : 5,420.75 = 1,148.06 : x
  2. Step 2: Convert to fraction form
    3,613.43/5,420.75 = 1,148.06/x
  3. Step 3: Cross multiply
    3,613.43x = 5,420.75 × 1,148.06
  4. Step 4: Simplify right side
    3,613.43x = 6,223,313.40
  5. Step 5: Solve for x
    x = 6,223,313.40/3,613.43
  6. Step 6: Final answer
    x = 1,722.28

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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.