Home / 2,247.52-3,391.58-2,178.26

Finding the Fourth Proportional to 2,247.52, 3,391.58 and 2,178.26

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Solution

The fourth proportional to 2,247.52, 3,391.58 and 2,178.26 is: 3,287.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,247.52 : 3,391.58 = 2,178.26 : x
  2. Step 2: Convert to fraction form
    2,247.52/3,391.58 = 2,178.26/x
  3. Step 3: Cross multiply
    2,247.52x = 3,391.58 × 2,178.26
  4. Step 4: Simplify right side
    2,247.52x = 7,387,743.05
  5. Step 5: Solve for x
    x = 7,387,743.05/2,247.52
  6. Step 6: Final answer
    x = 3,287.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.