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Finding the Fourth Proportional to 3,891.62, 5,368.58 and 2,633.10

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Solution

The fourth proportional to 3,891.62, 5,368.58 and 2,633.10 is: 3,632.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.62 : 5,368.58 = 2,633.10 : x
  2. Step 2: Convert to fraction form
    3,891.62/5,368.58 = 2,633.10/x
  3. Step 3: Cross multiply
    3,891.62x = 5,368.58 × 2,633.10
  4. Step 4: Simplify right side
    3,891.62x = 14,135,994.83
  5. Step 5: Solve for x
    x = 14,135,994.83/3,891.62
  6. Step 6: Final answer
    x = 3,632.42

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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.