Home / 2,575.03-3,861.96-1,258.78

Finding the Fourth Proportional to 2,575.03, 3,861.96 and 1,258.78

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Solution

The fourth proportional to 2,575.03, 3,861.96 and 1,258.78 is: 1,887.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,575.03 : 3,861.96 = 1,258.78 : x
  2. Step 2: Convert to fraction form
    2,575.03/3,861.96 = 1,258.78/x
  3. Step 3: Cross multiply
    2,575.03x = 3,861.96 × 1,258.78
  4. Step 4: Simplify right side
    2,575.03x = 4,861,343.63
  5. Step 5: Solve for x
    x = 4,861,343.63/2,575.03
  6. Step 6: Final answer
    x = 1,887.88

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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.