Home / 2,158.10-3,236.12-1,169.35

Finding the Fourth Proportional to 2,158.10, 3,236.12 and 1,169.35

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Solution

The fourth proportional to 2,158.10, 3,236.12 and 1,169.35 is: 1,753.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.10 : 3,236.12 = 1,169.35 : x
  2. Step 2: Convert to fraction form
    2,158.10/3,236.12 = 1,169.35/x
  3. Step 3: Cross multiply
    2,158.10x = 3,236.12 × 1,169.35
  4. Step 4: Simplify right side
    2,158.10x = 3,784,143.66
  5. Step 5: Solve for x
    x = 3,784,143.66/2,158.10
  6. Step 6: Final answer
    x = 1,753.46

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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.