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Finding the Fourth Proportional to 1,912.77, 2,869.74 and 1,363.32

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Solution

The fourth proportional to 1,912.77, 2,869.74 and 1,363.32 is: 2,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.77 : 2,869.74 = 1,363.32 : x
  2. Step 2: Convert to fraction form
    1,912.77/2,869.74 = 1,363.32/x
  3. Step 3: Cross multiply
    1,912.77x = 2,869.74 × 1,363.32
  4. Step 4: Simplify right side
    1,912.77x = 3,912,373.94
  5. Step 5: Solve for x
    x = 3,912,373.94/1,912.77
  6. Step 6: Final answer
    x = 2,045.40

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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.