Home / 2,168.34-3,249.45-1,242.51

Finding the Fourth Proportional to 2,168.34, 3,249.45 and 1,242.51

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Solution

The fourth proportional to 2,168.34, 3,249.45 and 1,242.51 is: 1,862.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168.34 : 3,249.45 = 1,242.51 : x
  2. Step 2: Convert to fraction form
    2,168.34/3,249.45 = 1,242.51/x
  3. Step 3: Cross multiply
    2,168.34x = 3,249.45 × 1,242.51
  4. Step 4: Simplify right side
    2,168.34x = 4,037,474.12
  5. Step 5: Solve for x
    x = 4,037,474.12/2,168.34
  6. Step 6: Final answer
    x = 1,862.01

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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.