Home / 5,274.16-7,912.43-2,807.68

Finding the Fourth Proportional to 5,274.16, 7,912.43 and 2,807.68

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Solution

The fourth proportional to 5,274.16, 7,912.43 and 2,807.68 is: 4,212.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.16 : 7,912.43 = 2,807.68 : x
  2. Step 2: Convert to fraction form
    5,274.16/7,912.43 = 2,807.68/x
  3. Step 3: Cross multiply
    5,274.16x = 7,912.43 × 2,807.68
  4. Step 4: Simplify right side
    5,274.16x = 22,215,538.92
  5. Step 5: Solve for x
    x = 22,215,538.92/5,274.16
  6. Step 6: Final answer
    x = 4,212.15

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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.