Home / 2,789.28-4,152.04-2,747.74

Finding the Fourth Proportional to 2,789.28, 4,152.04 and 2,747.74

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Solution

The fourth proportional to 2,789.28, 4,152.04 and 2,747.74 is: 4,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.28 : 4,152.04 = 2,747.74 : x
  2. Step 2: Convert to fraction form
    2,789.28/4,152.04 = 2,747.74/x
  3. Step 3: Cross multiply
    2,789.28x = 4,152.04 × 2,747.74
  4. Step 4: Simplify right side
    2,789.28x = 11,408,726.39
  5. Step 5: Solve for x
    x = 11,408,726.39/2,789.28
  6. Step 6: Final answer
    x = 4,090.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.