Home / 2,950.91-4,419.99-1,388.57

Finding the Fourth Proportional to 2,950.91, 4,419.99 and 1,388.57

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Solution

The fourth proportional to 2,950.91, 4,419.99 and 1,388.57 is: 2,079.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,950.91 : 4,419.99 = 1,388.57 : x
  2. Step 2: Convert to fraction form
    2,950.91/4,419.99 = 1,388.57/x
  3. Step 3: Cross multiply
    2,950.91x = 4,419.99 × 1,388.57
  4. Step 4: Simplify right side
    2,950.91x = 6,137,443.41
  5. Step 5: Solve for x
    x = 6,137,443.41/2,950.91
  6. Step 6: Final answer
    x = 2,079.85

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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.