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Finding the Fourth Proportional to 4,916.88, 7,375.60 and 1,995.20

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Solution

The fourth proportional to 4,916.88, 7,375.60 and 1,995.20 is: 2,992.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,916.88 : 7,375.60 = 1,995.20 : x
  2. Step 2: Convert to fraction form
    4,916.88/7,375.60 = 1,995.20/x
  3. Step 3: Cross multiply
    4,916.88x = 7,375.60 × 1,995.20
  4. Step 4: Simplify right side
    4,916.88x = 14,715,797.12
  5. Step 5: Solve for x
    x = 14,715,797.12/4,916.88
  6. Step 6: Final answer
    x = 2,992.91

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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.