Home / 6,122.45-9,178.65-1,959.86

Finding the Fourth Proportional to 6,122.45, 9,178.65 and 1,959.86

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Solution

The fourth proportional to 6,122.45, 9,178.65 and 1,959.86 is: 2,938.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,122.45 : 9,178.65 = 1,959.86 : x
  2. Step 2: Convert to fraction form
    6,122.45/9,178.65 = 1,959.86/x
  3. Step 3: Cross multiply
    6,122.45x = 9,178.65 × 1,959.86
  4. Step 4: Simplify right side
    6,122.45x = 17,988,823.10
  5. Step 5: Solve for x
    x = 17,988,823.10/6,122.45
  6. Step 6: Final answer
    x = 2,938.18

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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.