Home / 2,912.43-4,019.28-1,653.54

Finding the Fourth Proportional to 2,912.43, 4,019.28 and 1,653.54

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Solution

The fourth proportional to 2,912.43, 4,019.28 and 1,653.54 is: 2,281.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.43 : 4,019.28 = 1,653.54 : x
  2. Step 2: Convert to fraction form
    2,912.43/4,019.28 = 1,653.54/x
  3. Step 3: Cross multiply
    2,912.43x = 4,019.28 × 1,653.54
  4. Step 4: Simplify right side
    2,912.43x = 6,646,040.25
  5. Step 5: Solve for x
    x = 6,646,040.25/2,912.43
  6. Step 6: Final answer
    x = 2,281.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.