Home / 1,864.12-2,796.90-1,381.24

Finding the Fourth Proportional to 1,864.12, 2,796.90 and 1,381.24

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Solution

The fourth proportional to 1,864.12, 2,796.90 and 1,381.24 is: 2,072.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.12 : 2,796.90 = 1,381.24 : x
  2. Step 2: Convert to fraction form
    1,864.12/2,796.90 = 1,381.24/x
  3. Step 3: Cross multiply
    1,864.12x = 2,796.90 × 1,381.24
  4. Step 4: Simplify right side
    1,864.12x = 3,863,190.16
  5. Step 5: Solve for x
    x = 3,863,190.16/1,864.12
  6. Step 6: Final answer
    x = 2,072.39

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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.