Home / 2,857.32-4,283.55-2,721.24

Finding the Fourth Proportional to 2,857.32, 4,283.55 and 2,721.24

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Solution

The fourth proportional to 2,857.32, 4,283.55 and 2,721.24 is: 4,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.32 : 4,283.55 = 2,721.24 : x
  2. Step 2: Convert to fraction form
    2,857.32/4,283.55 = 2,721.24/x
  3. Step 3: Cross multiply
    2,857.32x = 4,283.55 × 2,721.24
  4. Step 4: Simplify right side
    2,857.32x = 11,656,567.60
  5. Step 5: Solve for x
    x = 11,656,567.60/2,857.32
  6. Step 6: Final answer
    x = 4,079.55

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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.