Home / 2,857.16-3,943.38-1,662.28

Finding the Fourth Proportional to 2,857.16, 3,943.38 and 1,662.28

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Solution

The fourth proportional to 2,857.16, 3,943.38 and 1,662.28 is: 2,294.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.16 : 3,943.38 = 1,662.28 : x
  2. Step 2: Convert to fraction form
    2,857.16/3,943.38 = 1,662.28/x
  3. Step 3: Cross multiply
    2,857.16x = 3,943.38 × 1,662.28
  4. Step 4: Simplify right side
    2,857.16x = 6,555,001.71
  5. Step 5: Solve for x
    x = 6,555,001.71/2,857.16
  6. Step 6: Final answer
    x = 2,294.24

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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.