Home / 2,277.76-3,143.28-1,283.26

Finding the Fourth Proportional to 2,277.76, 3,143.28 and 1,283.26

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Solution

The fourth proportional to 2,277.76, 3,143.28 and 1,283.26 is: 1,770.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.76 : 3,143.28 = 1,283.26 : x
  2. Step 2: Convert to fraction form
    2,277.76/3,143.28 = 1,283.26/x
  3. Step 3: Cross multiply
    2,277.76x = 3,143.28 × 1,283.26
  4. Step 4: Simplify right side
    2,277.76x = 4,033,645.49
  5. Step 5: Solve for x
    x = 4,033,645.49/2,277.76
  6. Step 6: Final answer
    x = 1,770.88

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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.