Home / 2,827.80-4,242.12-1,512.24

Finding the Fourth Proportional to 2,827.80, 4,242.12 and 1,512.24

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Solution

The fourth proportional to 2,827.80, 4,242.12 and 1,512.24 is: 2,268.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.80 : 4,242.12 = 1,512.24 : x
  2. Step 2: Convert to fraction form
    2,827.80/4,242.12 = 1,512.24/x
  3. Step 3: Cross multiply
    2,827.80x = 4,242.12 × 1,512.24
  4. Step 4: Simplify right side
    2,827.80x = 6,415,103.55
  5. Step 5: Solve for x
    x = 6,415,103.55/2,827.80
  6. Step 6: Final answer
    x = 2,268.58

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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.