Home / 5,189.70-7,780.76-3,541.08

Finding the Fourth Proportional to 5,189.70, 7,780.76 and 3,541.08

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Solution

The fourth proportional to 5,189.70, 7,780.76 and 3,541.08 is: 5,309.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.70 : 7,780.76 = 3,541.08 : x
  2. Step 2: Convert to fraction form
    5,189.70/7,780.76 = 3,541.08/x
  3. Step 3: Cross multiply
    5,189.70x = 7,780.76 × 3,541.08
  4. Step 4: Simplify right side
    5,189.70x = 27,552,293.62
  5. Step 5: Solve for x
    x = 27,552,293.62/5,189.70
  6. Step 6: Final answer
    x = 5,309.03

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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.