Home / 2,931.28-4,396.88-1,176.73

Finding the Fourth Proportional to 2,931.28, 4,396.88 and 1,176.73

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Solution

The fourth proportional to 2,931.28, 4,396.88 and 1,176.73 is: 1,765.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.28 : 4,396.88 = 1,176.73 : x
  2. Step 2: Convert to fraction form
    2,931.28/4,396.88 = 1,176.73/x
  3. Step 3: Cross multiply
    2,931.28x = 4,396.88 × 1,176.73
  4. Step 4: Simplify right side
    2,931.28x = 5,173,932.55
  5. Step 5: Solve for x
    x = 5,173,932.55/2,931.28
  6. Step 6: Final answer
    x = 1,765.08

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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.