Home / 4,575.40-6,863.16-1,288.56

Finding the Fourth Proportional to 4,575.40, 6,863.16 and 1,288.56

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Solution

The fourth proportional to 4,575.40, 6,863.16 and 1,288.56 is: 1,932.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,575.40 : 6,863.16 = 1,288.56 : x
  2. Step 2: Convert to fraction form
    4,575.40/6,863.16 = 1,288.56/x
  3. Step 3: Cross multiply
    4,575.40x = 6,863.16 × 1,288.56
  4. Step 4: Simplify right side
    4,575.40x = 8,843,593.45
  5. Step 5: Solve for x
    x = 8,843,593.45/4,575.40
  6. Step 6: Final answer
    x = 1,932.86

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Double scale
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Similar ratio
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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.