Home / 5,707.68-7,876.63-3,189.90

Finding the Fourth Proportional to 5,707.68, 7,876.63 and 3,189.90

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Solution

The fourth proportional to 5,707.68, 7,876.63 and 3,189.90 is: 4,402.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,707.68 : 7,876.63 = 3,189.90 : x
  2. Step 2: Convert to fraction form
    5,707.68/7,876.63 = 3,189.90/x
  3. Step 3: Cross multiply
    5,707.68x = 7,876.63 × 3,189.90
  4. Step 4: Simplify right side
    5,707.68x = 25,125,654.06
  5. Step 5: Solve for x
    x = 25,125,654.06/5,707.68
  6. Step 6: Final answer
    x = 4,402.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.