Home / 2,218.66-3,061.70-1,274.75

Finding the Fourth Proportional to 2,218.66, 3,061.70 and 1,274.75

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Solution

The fourth proportional to 2,218.66, 3,061.70 and 1,274.75 is: 1,759.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.66 : 3,061.70 = 1,274.75 : x
  2. Step 2: Convert to fraction form
    2,218.66/3,061.70 = 1,274.75/x
  3. Step 3: Cross multiply
    2,218.66x = 3,061.70 × 1,274.75
  4. Step 4: Simplify right side
    2,218.66x = 3,902,903.36
  5. Step 5: Solve for x
    x = 3,902,903.36/2,218.66
  6. Step 6: Final answer
    x = 1,759.13

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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.