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Finding the Fourth Proportional to 5,915.67, 8,873.97 and 1,966.78

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Solution

The fourth proportional to 5,915.67, 8,873.97 and 1,966.78 is: 2,950.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.67 : 8,873.97 = 1,966.78 : x
  2. Step 2: Convert to fraction form
    5,915.67/8,873.97 = 1,966.78/x
  3. Step 3: Cross multiply
    5,915.67x = 8,873.97 × 1,966.78
  4. Step 4: Simplify right side
    5,915.67x = 17,453,146.72
  5. Step 5: Solve for x
    x = 17,453,146.72/5,915.67
  6. Step 6: Final answer
    x = 2,950.32

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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.