Home / 1,915.45-2,869.19-1,849.36

Finding the Fourth Proportional to 1,915.45, 2,869.19 and 1,849.36

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Solution

The fourth proportional to 1,915.45, 2,869.19 and 1,849.36 is: 2,770.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.45 : 2,869.19 = 1,849.36 : x
  2. Step 2: Convert to fraction form
    1,915.45/2,869.19 = 1,849.36/x
  3. Step 3: Cross multiply
    1,915.45x = 2,869.19 × 1,849.36
  4. Step 4: Simplify right side
    1,915.45x = 5,306,161.11
  5. Step 5: Solve for x
    x = 5,306,161.11/1,915.45
  6. Step 6: Final answer
    x = 2,770.19

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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.