Home / 2,148.06-3,219.33-1,869.25

Finding the Fourth Proportional to 2,148.06, 3,219.33 and 1,869.25

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Solution

The fourth proportional to 2,148.06, 3,219.33 and 1,869.25 is: 2,801.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.06 : 3,219.33 = 1,869.25 : x
  2. Step 2: Convert to fraction form
    2,148.06/3,219.33 = 1,869.25/x
  3. Step 3: Cross multiply
    2,148.06x = 3,219.33 × 1,869.25
  4. Step 4: Simplify right side
    2,148.06x = 6,017,732.60
  5. Step 5: Solve for x
    x = 6,017,732.60/2,148.06
  6. Step 6: Final answer
    x = 2,801.47

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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.