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Finding the Fourth Proportional to 4,895.75, 7,343.44 and 1,385.78

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Solution

The fourth proportional to 4,895.75, 7,343.44 and 1,385.78 is: 2,078.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,895.75 : 7,343.44 = 1,385.78 : x
  2. Step 2: Convert to fraction form
    4,895.75/7,343.44 = 1,385.78/x
  3. Step 3: Cross multiply
    4,895.75x = 7,343.44 × 1,385.78
  4. Step 4: Simplify right side
    4,895.75x = 10,176,392.28
  5. Step 5: Solve for x
    x = 10,176,392.28/4,895.75
  6. Step 6: Final answer
    x = 2,078.62

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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.