Home / 7,882.31-11,823.57-1,959.19

Finding the Fourth Proportional to 7,882.31, 11,823.57 and 1,959.19

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Solution

The fourth proportional to 7,882.31, 11,823.57 and 1,959.19 is: 2,938.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882.31 : 11,823.57 = 1,959.19 : x
  2. Step 2: Convert to fraction form
    7,882.31/11,823.57 = 1,959.19/x
  3. Step 3: Cross multiply
    7,882.31x = 11,823.57 × 1,959.19
  4. Step 4: Simplify right side
    7,882.31x = 23,164,590.55
  5. Step 5: Solve for x
    x = 23,164,590.55/7,882.31
  6. Step 6: Final answer
    x = 2,938.81

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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.