Home / 4,189-5,780.82-2,615.08

Finding the Fourth Proportional to 4,189, 5,780.82 and 2,615.08

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Solution

The fourth proportional to 4,189, 5,780.82 and 2,615.08 is: 3,608.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189 : 5,780.82 = 2,615.08 : x
  2. Step 2: Convert to fraction form
    4,189/5,780.82 = 2,615.08/x
  3. Step 3: Cross multiply
    4,189x = 5,780.82 × 2,615.08
  4. Step 4: Simplify right side
    4,189x = 15,117,306.77
  5. Step 5: Solve for x
    x = 15,117,306.77/4,189
  6. Step 6: Final answer
    x = 3,608.81

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1.5x scale

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.