Home / 3,543.80-5,316.30-1,078.02

Finding the Fourth Proportional to 3,543.80, 5,316.30 and 1,078.02

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Solution

The fourth proportional to 3,543.80, 5,316.30 and 1,078.02 is: 1,617.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.80 : 5,316.30 = 1,078.02 : x
  2. Step 2: Convert to fraction form
    3,543.80/5,316.30 = 1,078.02/x
  3. Step 3: Cross multiply
    3,543.80x = 5,316.30 × 1,078.02
  4. Step 4: Simplify right side
    3,543.80x = 5,731,077.73
  5. Step 5: Solve for x
    x = 5,731,077.73/3,543.80
  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.