Home / 2,187.25-3,281.18-2,069.10

Finding the Fourth Proportional to 2,187.25, 3,281.18 and 2,069.10

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Solution

The fourth proportional to 2,187.25, 3,281.18 and 2,069.10 is: 3,103.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.25 : 3,281.18 = 2,069.10 : x
  2. Step 2: Convert to fraction form
    2,187.25/3,281.18 = 2,069.10/x
  3. Step 3: Cross multiply
    2,187.25x = 3,281.18 × 2,069.10
  4. Step 4: Simplify right side
    2,187.25x = 6,789,079.19
  5. Step 5: Solve for x
    x = 6,789,079.19/2,187.25
  6. Step 6: Final answer
    x = 3,103.94

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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.