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Finding the Fourth Proportional to 2,878.76, 4,295.65 and 2,766.44

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Solution

The fourth proportional to 2,878.76, 4,295.65 and 2,766.44 is: 4,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.76 : 4,295.65 = 2,766.44 : x
  2. Step 2: Convert to fraction form
    2,878.76/4,295.65 = 2,766.44/x
  3. Step 3: Cross multiply
    2,878.76x = 4,295.65 × 2,766.44
  4. Step 4: Simplify right side
    2,878.76x = 11,883,657.99
  5. Step 5: Solve for x
    x = 11,883,657.99/2,878.76
  6. Step 6: Final answer
    x = 4,128.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.