Home / 3,543.26-5,315.18-1,078.08

Finding the Fourth Proportional to 3,543.26, 5,315.18 and 1,078.08

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Solution

The fourth proportional to 3,543.26, 5,315.18 and 1,078.08 is: 1,617.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.26 : 5,315.18 = 1,078.08 : x
  2. Step 2: Convert to fraction form
    3,543.26/5,315.18 = 1,078.08/x
  3. Step 3: Cross multiply
    3,543.26x = 5,315.18 × 1,078.08
  4. Step 4: Simplify right side
    3,543.26x = 5,730,187.72
  5. Step 5: Solve for x
    x = 5,730,187.72/3,543.26
  6. Step 6: Final answer
    x = 1,617.21

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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.