Home / 2,912.95-4,369.40-1,743.28

Finding the Fourth Proportional to 2,912.95, 4,369.40 and 1,743.28

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Solution

The fourth proportional to 2,912.95, 4,369.40 and 1,743.28 is: 2,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.95 : 4,369.40 = 1,743.28 : x
  2. Step 2: Convert to fraction form
    2,912.95/4,369.40 = 1,743.28/x
  3. Step 3: Cross multiply
    2,912.95x = 4,369.40 × 1,743.28
  4. Step 4: Simplify right side
    2,912.95x = 7,617,065.79
  5. Step 5: Solve for x
    x = 7,617,065.79/2,912.95
  6. Step 6: Final answer
    x = 2,614.90

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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.