Home / 6,182.78-9,278.82-5,315.27

Finding the Fourth Proportional to 6,182.78, 9,278.82 and 5,315.27

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Solution

The fourth proportional to 6,182.78, 9,278.82 and 5,315.27 is: 7,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,182.78 : 9,278.82 = 5,315.27 : x
  2. Step 2: Convert to fraction form
    6,182.78/9,278.82 = 5,315.27/x
  3. Step 3: Cross multiply
    6,182.78x = 9,278.82 × 5,315.27
  4. Step 4: Simplify right side
    6,182.78x = 49,319,387.19
  5. Step 5: Solve for x
    x = 49,319,387.19/6,182.78
  6. Step 6: Final answer
    x = 7,976.90

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1.5x scale

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.