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Finding the Fourth Proportional to 3,865.04, 5,336.99 and 2,874.74

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Solution

The fourth proportional to 3,865.04, 5,336.99 and 2,874.74 is: 3,969.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.04 : 5,336.99 = 2,874.74 : x
  2. Step 2: Convert to fraction form
    3,865.04/5,336.99 = 2,874.74/x
  3. Step 3: Cross multiply
    3,865.04x = 5,336.99 × 2,874.74
  4. Step 4: Simplify right side
    3,865.04x = 15,342,428.35
  5. Step 5: Solve for x
    x = 15,342,428.35/3,865.04
  6. Step 6: Final answer
    x = 3,969.54

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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.