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Finding the Fourth Proportional to 3,287.09, 4,534.28 and 1,943.09

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Solution

The fourth proportional to 3,287.09, 4,534.28 and 1,943.09 is: 2,680.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,287.09 : 4,534.28 = 1,943.09 : x
  2. Step 2: Convert to fraction form
    3,287.09/4,534.28 = 1,943.09/x
  3. Step 3: Cross multiply
    3,287.09x = 4,534.28 × 1,943.09
  4. Step 4: Simplify right side
    3,287.09x = 8,810,514.13
  5. Step 5: Solve for x
    x = 8,810,514.13/3,287.09
  6. Step 6: Final answer
    x = 2,680.34

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1.5x scale

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.