Home / 2,213.87-3,055.13-1,329.68

Finding the Fourth Proportional to 2,213.87, 3,055.13 and 1,329.68

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Solution

The fourth proportional to 2,213.87, 3,055.13 and 1,329.68 is: 1,834.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.87 : 3,055.13 = 1,329.68 : x
  2. Step 2: Convert to fraction form
    2,213.87/3,055.13 = 1,329.68/x
  3. Step 3: Cross multiply
    2,213.87x = 3,055.13 × 1,329.68
  4. Step 4: Simplify right side
    2,213.87x = 4,062,358.71
  5. Step 5: Solve for x
    x = 4,062,358.71/2,213.87
  6. Step 6: Final answer
    x = 1,834.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.