Home / 3,008.28-4,514.70-1,278.12

Finding the Fourth Proportional to 3,008.28, 4,514.70 and 1,278.12

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Solution

The fourth proportional to 3,008.28, 4,514.70 and 1,278.12 is: 1,918.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,008.28 : 4,514.70 = 1,278.12 : x
  2. Step 2: Convert to fraction form
    3,008.28/4,514.70 = 1,278.12/x
  3. Step 3: Cross multiply
    3,008.28x = 4,514.70 × 1,278.12
  4. Step 4: Simplify right side
    3,008.28x = 5,770,328.36
  5. Step 5: Solve for x
    x = 5,770,328.36/3,008.28
  6. Step 6: Final answer
    x = 1,918.15

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1.5x scale

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.