Home / 2,943.30-4,061.19-1,999.84

Finding the Fourth Proportional to 2,943.30, 4,061.19 and 1,999.84

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Solution

The fourth proportional to 2,943.30, 4,061.19 and 1,999.84 is: 2,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.30 : 4,061.19 = 1,999.84 : x
  2. Step 2: Convert to fraction form
    2,943.30/4,061.19 = 1,999.84/x
  3. Step 3: Cross multiply
    2,943.30x = 4,061.19 × 1,999.84
  4. Step 4: Simplify right side
    2,943.30x = 8,121,730.21
  5. Step 5: Solve for x
    x = 8,121,730.21/2,943.30
  6. Step 6: Final answer
    x = 2,759.40

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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.