Home / 2,801.16-4,203.63-2,109.42

Finding the Fourth Proportional to 2,801.16, 4,203.63 and 2,109.42

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Solution

The fourth proportional to 2,801.16, 4,203.63 and 2,109.42 is: 3,165.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801.16 : 4,203.63 = 2,109.42 : x
  2. Step 2: Convert to fraction form
    2,801.16/4,203.63 = 2,109.42/x
  3. Step 3: Cross multiply
    2,801.16x = 4,203.63 × 2,109.42
  4. Step 4: Simplify right side
    2,801.16x = 8,867,221.19
  5. Step 5: Solve for x
    x = 8,867,221.19/2,801.16
  6. Step 6: Final answer
    x = 3,165.55

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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.