Home / 2,957.80-4,428.12-2,079.16

Finding the Fourth Proportional to 2,957.80, 4,428.12 and 2,079.16

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Solution

The fourth proportional to 2,957.80, 4,428.12 and 2,079.16 is: 3,112.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.80 : 4,428.12 = 2,079.16 : x
  2. Step 2: Convert to fraction form
    2,957.80/4,428.12 = 2,079.16/x
  3. Step 3: Cross multiply
    2,957.80x = 4,428.12 × 2,079.16
  4. Step 4: Simplify right side
    2,957.80x = 9,206,769.98
  5. Step 5: Solve for x
    x = 9,206,769.98/2,957.80
  6. Step 6: Final answer
    x = 3,112.71

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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.