Home / 2,391.66-3,586.68-931.23

Finding the Fourth Proportional to 2,391.66, 3,586.68 and 931.23

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Solution

The fourth proportional to 2,391.66, 3,586.68 and 931.23 is: 1,396.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.66 : 3,586.68 = 931.23 : x
  2. Step 2: Convert to fraction form
    2,391.66/3,586.68 = 931.23/x
  3. Step 3: Cross multiply
    2,391.66x = 3,586.68 × 931.23
  4. Step 4: Simplify right side
    2,391.66x = 3,340,024.02
  5. Step 5: Solve for x
    x = 3,340,024.02/2,391.66
  6. Step 6: Final answer
    x = 1,396.53

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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.