Home / 1,634.52-2,255.67-1,280.88

Finding the Fourth Proportional to 1,634.52, 2,255.67 and 1,280.88

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Solution

The fourth proportional to 1,634.52, 2,255.67 and 1,280.88 is: 1,767.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.52 : 2,255.67 = 1,280.88 : x
  2. Step 2: Convert to fraction form
    1,634.52/2,255.67 = 1,280.88/x
  3. Step 3: Cross multiply
    1,634.52x = 2,255.67 × 1,280.88
  4. Step 4: Simplify right side
    1,634.52x = 2,889,242.59
  5. Step 5: Solve for x
    x = 2,889,242.59/1,634.52
  6. Step 6: Final answer
    x = 1,767.64

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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.