Home / 2,575.02-3,861.78-931.26

Finding the Fourth Proportional to 2,575.02, 3,861.78 and 931.26

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Solution

The fourth proportional to 2,575.02, 3,861.78 and 931.26 is: 1,396.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,575.02 : 3,861.78 = 931.26 : x
  2. Step 2: Convert to fraction form
    2,575.02/3,861.78 = 931.26/x
  3. Step 3: Cross multiply
    2,575.02x = 3,861.78 × 931.26
  4. Step 4: Simplify right side
    2,575.02x = 3,596,321.24
  5. Step 5: Solve for x
    x = 3,596,321.24/2,575.02
  6. Step 6: Final answer
    x = 1,396.62

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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.