Home / 2,560.24-3,838.56-1,260.88

Finding the Fourth Proportional to 2,560.24, 3,838.56 and 1,260.88

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Solution

The fourth proportional to 2,560.24, 3,838.56 and 1,260.88 is: 1,890.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560.24 : 3,838.56 = 1,260.88 : x
  2. Step 2: Convert to fraction form
    2,560.24/3,838.56 = 1,260.88/x
  3. Step 3: Cross multiply
    2,560.24x = 3,838.56 × 1,260.88
  4. Step 4: Simplify right side
    2,560.24x = 4,839,963.53
  5. Step 5: Solve for x
    x = 4,839,963.53/2,560.24
  6. Step 6: Final answer
    x = 1,890.43

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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.