Home / 2,949.66-4,419.85-1,389.29

Finding the Fourth Proportional to 2,949.66, 4,419.85 and 1,389.29

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Solution

The fourth proportional to 2,949.66, 4,419.85 and 1,389.29 is: 2,081.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.66 : 4,419.85 = 1,389.29 : x
  2. Step 2: Convert to fraction form
    2,949.66/4,419.85 = 1,389.29/x
  3. Step 3: Cross multiply
    2,949.66x = 4,419.85 × 1,389.29
  4. Step 4: Simplify right side
    2,949.66x = 6,140,453.41
  5. Step 5: Solve for x
    x = 6,140,453.41/2,949.66
  6. Step 6: Final answer
    x = 2,081.75

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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.