Home / 4,103.28-5,660.72-2,776.52

Finding the Fourth Proportional to 4,103.28, 5,660.72 and 2,776.52

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Solution

The fourth proportional to 4,103.28, 5,660.72 and 2,776.52 is: 3,830.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,103.28 : 5,660.72 = 2,776.52 : x
  2. Step 2: Convert to fraction form
    4,103.28/5,660.72 = 2,776.52/x
  3. Step 3: Cross multiply
    4,103.28x = 5,660.72 × 2,776.52
  4. Step 4: Simplify right side
    4,103.28x = 15,717,102.29
  5. Step 5: Solve for x
    x = 15,717,102.29/4,103.28
  6. Step 6: Final answer
    x = 3,830.38

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Half scale
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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.