Home / 3,543.06-5,314.70-1,078.50

Finding the Fourth Proportional to 3,543.06, 5,314.70 and 1,078.50

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Solution

The fourth proportional to 3,543.06, 5,314.70 and 1,078.50 is: 1,617.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.06 : 5,314.70 = 1,078.50 : x
  2. Step 2: Convert to fraction form
    3,543.06/5,314.70 = 1,078.50/x
  3. Step 3: Cross multiply
    3,543.06x = 5,314.70 × 1,078.50
  4. Step 4: Simplify right side
    3,543.06x = 5,731,903.95
  5. Step 5: Solve for x
    x = 5,731,903.95/3,543.06
  6. Step 6: Final answer
    x = 1,617.78

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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.