Home / 2,747.28-4,118.04-1,285.23

Finding the Fourth Proportional to 2,747.28, 4,118.04 and 1,285.23

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Solution

The fourth proportional to 2,747.28, 4,118.04 and 1,285.23 is: 1,926.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.28 : 4,118.04 = 1,285.23 : x
  2. Step 2: Convert to fraction form
    2,747.28/4,118.04 = 1,285.23/x
  3. Step 3: Cross multiply
    2,747.28x = 4,118.04 × 1,285.23
  4. Step 4: Simplify right side
    2,747.28x = 5,292,628.55
  5. Step 5: Solve for x
    x = 5,292,628.55/2,747.28
  6. Step 6: Final answer
    x = 1,926.50

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Double scale
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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.