Home / 3,613.40-5,420.29-1,148.41

Finding the Fourth Proportional to 3,613.40, 5,420.29 and 1,148.41

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Solution

The fourth proportional to 3,613.40, 5,420.29 and 1,148.41 is: 1,722.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.40 : 5,420.29 = 1,148.41 : x
  2. Step 2: Convert to fraction form
    3,613.40/5,420.29 = 1,148.41/x
  3. Step 3: Cross multiply
    3,613.40x = 5,420.29 × 1,148.41
  4. Step 4: Simplify right side
    3,613.40x = 6,224,715.24
  5. Step 5: Solve for x
    x = 6,224,715.24/3,613.40
  6. Step 6: Final answer
    x = 1,722.68

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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.