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Finding the Fourth Proportional to 2,886.70, 4,331.81 and 2,226.01

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Solution

The fourth proportional to 2,886.70, 4,331.81 and 2,226.01 is: 3,340.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.70 : 4,331.81 = 2,226.01 : x
  2. Step 2: Convert to fraction form
    2,886.70/4,331.81 = 2,226.01/x
  3. Step 3: Cross multiply
    2,886.70x = 4,331.81 × 2,226.01
  4. Step 4: Simplify right side
    2,886.70x = 9,642,652.38
  5. Step 5: Solve for x
    x = 9,642,652.38/2,886.70
  6. Step 6: Final answer
    x = 3,340.37

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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.