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Finding the Fourth Proportional to 3,275.78, 4,520.22 and 1,878.80

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Solution

The fourth proportional to 3,275.78, 4,520.22 and 1,878.80 is: 2,592.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.78 : 4,520.22 = 1,878.80 : x
  2. Step 2: Convert to fraction form
    3,275.78/4,520.22 = 1,878.80/x
  3. Step 3: Cross multiply
    3,275.78x = 4,520.22 × 1,878.80
  4. Step 4: Simplify right side
    3,275.78x = 8,492,589.34
  5. Step 5: Solve for x
    x = 8,492,589.34/3,275.78
  6. Step 6: Final answer
    x = 2,592.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.