Home / 2,942.91-4,061.19-1,616.64

Finding the Fourth Proportional to 2,942.91, 4,061.19 and 1,616.64

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Solution

The fourth proportional to 2,942.91, 4,061.19 and 1,616.64 is: 2,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.91 : 4,061.19 = 1,616.64 : x
  2. Step 2: Convert to fraction form
    2,942.91/4,061.19 = 1,616.64/x
  3. Step 3: Cross multiply
    2,942.91x = 4,061.19 × 1,616.64
  4. Step 4: Simplify right side
    2,942.91x = 6,565,482.20
  5. Step 5: Solve for x
    x = 6,565,482.20/2,942.91
  6. Step 6: Final answer
    x = 2,230.95

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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.