Home / 2,857.25-4,285.85-1,470.97

Finding the Fourth Proportional to 2,857.25, 4,285.85 and 1,470.97

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Solution

The fourth proportional to 2,857.25, 4,285.85 and 1,470.97 is: 2,206.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.25 : 4,285.85 = 1,470.97 : x
  2. Step 2: Convert to fraction form
    2,857.25/4,285.85 = 1,470.97/x
  3. Step 3: Cross multiply
    2,857.25x = 4,285.85 × 1,470.97
  4. Step 4: Simplify right side
    2,857.25x = 6,304,356.77
  5. Step 5: Solve for x
    x = 6,304,356.77/2,857.25
  6. Step 6: Final answer
    x = 2,206.44

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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.