Home / 2,575.19-3,863.34-931.56

Finding the Fourth Proportional to 2,575.19, 3,863.34 and 931.56

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Solution

The fourth proportional to 2,575.19, 3,863.34 and 931.56 is: 1,397.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,575.19 : 3,863.34 = 931.56 : x
  2. Step 2: Convert to fraction form
    2,575.19/3,863.34 = 931.56/x
  3. Step 3: Cross multiply
    2,575.19x = 3,863.34 × 931.56
  4. Step 4: Simplify right side
    2,575.19x = 3,598,933.01
  5. Step 5: Solve for x
    x = 3,598,933.01/2,575.19
  6. Step 6: Final answer
    x = 1,397.54

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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.