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Finding the Fourth Proportional to 5,865.40, 8,796.68 and 2,168.05

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Solution

The fourth proportional to 5,865.40, 8,796.68 and 2,168.05 is: 3,251.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,865.40 : 8,796.68 = 2,168.05 : x
  2. Step 2: Convert to fraction form
    5,865.40/8,796.68 = 2,168.05/x
  3. Step 3: Cross multiply
    5,865.40x = 8,796.68 × 2,168.05
  4. Step 4: Simplify right side
    5,865.40x = 19,071,642.07
  5. Step 5: Solve for x
    x = 19,071,642.07/5,865.40
  6. Step 6: Final answer
    x = 3,251.55

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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.