Home / 6,121.13-9,182.34-1,959.65

Finding the Fourth Proportional to 6,121.13, 9,182.34 and 1,959.65

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Solution

The fourth proportional to 6,121.13, 9,182.34 and 1,959.65 is: 2,939.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.13 : 9,182.34 = 1,959.65 : x
  2. Step 2: Convert to fraction form
    6,121.13/9,182.34 = 1,959.65/x
  3. Step 3: Cross multiply
    6,121.13x = 9,182.34 × 1,959.65
  4. Step 4: Simplify right side
    6,121.13x = 17,994,126.67
  5. Step 5: Solve for x
    x = 17,994,126.67/6,121.13
  6. Step 6: Final answer
    x = 2,939.68

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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.