Home / 2,922.20-4,382.23-841.51

Finding the Fourth Proportional to 2,922.20, 4,382.23 and 841.51

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Solution

The fourth proportional to 2,922.20, 4,382.23 and 841.51 is: 1,261.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.20 : 4,382.23 = 841.51 : x
  2. Step 2: Convert to fraction form
    2,922.20/4,382.23 = 841.51/x
  3. Step 3: Cross multiply
    2,922.20x = 4,382.23 × 841.51
  4. Step 4: Simplify right side
    2,922.20x = 3,687,677.31
  5. Step 5: Solve for x
    x = 3,687,677.31/2,922.20
  6. Step 6: Final answer
    x = 1,261.95

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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.