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Finding the Fourth Proportional to 3,275.76, 4,520.54 and 1,878.50

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Solution

The fourth proportional to 3,275.76, 4,520.54 and 1,878.50 is: 2,592.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.76 : 4,520.54 = 1,878.50 : x
  2. Step 2: Convert to fraction form
    3,275.76/4,520.54 = 1,878.50/x
  3. Step 3: Cross multiply
    3,275.76x = 4,520.54 × 1,878.50
  4. Step 4: Simplify right side
    3,275.76x = 8,491,834.39
  5. Step 5: Solve for x
    x = 8,491,834.39/3,275.76
  6. Step 6: Final answer
    x = 2,592.32

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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.