Home / 5,267.28-7,900.29-1,371.99

Finding the Fourth Proportional to 5,267.28, 7,900.29 and 1,371.99

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Solution

The fourth proportional to 5,267.28, 7,900.29 and 1,371.99 is: 2,057.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,267.28 : 7,900.29 = 1,371.99 : x
  2. Step 2: Convert to fraction form
    5,267.28/7,900.29 = 1,371.99/x
  3. Step 3: Cross multiply
    5,267.28x = 7,900.29 × 1,371.99
  4. Step 4: Simplify right side
    5,267.28x = 10,839,118.88
  5. Step 5: Solve for x
    x = 10,839,118.88/5,267.28
  6. Step 6: Final answer
    x = 2,057.82

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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.