Home / 2,575.16-3,861.96-931.50

Finding the Fourth Proportional to 2,575.16, 3,861.96 and 931.50

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Solution

The fourth proportional to 2,575.16, 3,861.96 and 931.50 is: 1,396.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,575.16 : 3,861.96 = 931.50 : x
  2. Step 2: Convert to fraction form
    2,575.16/3,861.96 = 931.50/x
  3. Step 3: Cross multiply
    2,575.16x = 3,861.96 × 931.50
  4. Step 4: Simplify right side
    2,575.16x = 3,597,415.74
  5. Step 5: Solve for x
    x = 3,597,415.74/2,575.16
  6. Step 6: Final answer
    x = 1,396.97

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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.