Home / 2,548.12-3,822.22-1,161.40

Finding the Fourth Proportional to 2,548.12, 3,822.22 and 1,161.40

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Solution

The fourth proportional to 2,548.12, 3,822.22 and 1,161.40 is: 1,742.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,548.12 : 3,822.22 = 1,161.40 : x
  2. Step 2: Convert to fraction form
    2,548.12/3,822.22 = 1,161.40/x
  3. Step 3: Cross multiply
    2,548.12x = 3,822.22 × 1,161.40
  4. Step 4: Simplify right side
    2,548.12x = 4,439,126.31
  5. Step 5: Solve for x
    x = 4,439,126.31/2,548.12
  6. Step 6: Final answer
    x = 1,742.12

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1.5x scale

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.