Home / 2,120.11-2,924.71-1,839.95

Finding the Fourth Proportional to 2,120.11, 2,924.71 and 1,839.95

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Solution

The fourth proportional to 2,120.11, 2,924.71 and 1,839.95 is: 2,538.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.11 : 2,924.71 = 1,839.95 : x
  2. Step 2: Convert to fraction form
    2,120.11/2,924.71 = 1,839.95/x
  3. Step 3: Cross multiply
    2,120.11x = 2,924.71 × 1,839.95
  4. Step 4: Simplify right side
    2,120.11x = 5,381,320.16
  5. Step 5: Solve for x
    x = 5,381,320.16/2,120.11
  6. Step 6: Final answer
    x = 2,538.23

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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.