Home / 2,575.44-3,862.80-931.76

Finding the Fourth Proportional to 2,575.44, 3,862.80 and 931.76

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Solution

The fourth proportional to 2,575.44, 3,862.80 and 931.76 is: 1,397.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,575.44 : 3,862.80 = 931.76 : x
  2. Step 2: Convert to fraction form
    2,575.44/3,862.80 = 931.76/x
  3. Step 3: Cross multiply
    2,575.44x = 3,862.80 × 931.76
  4. Step 4: Simplify right side
    2,575.44x = 3,599,202.53
  5. Step 5: Solve for x
    x = 3,599,202.53/2,575.44
  6. Step 6: Final answer
    x = 1,397.51

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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.