Home / 2,278.29-3,144-1,283.70

Finding the Fourth Proportional to 2,278.29, 3,144 and 1,283.70

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Solution

The fourth proportional to 2,278.29, 3,144 and 1,283.70 is: 1,771.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.29 : 3,144 = 1,283.70 : x
  2. Step 2: Convert to fraction form
    2,278.29/3,144 = 1,283.70/x
  3. Step 3: Cross multiply
    2,278.29x = 3,144 × 1,283.70
  4. Step 4: Simplify right side
    2,278.29x = 4,035,952.80
  5. Step 5: Solve for x
    x = 4,035,952.80/2,278.29
  6. Step 6: Final answer
    x = 1,771.48

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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.