Home / 2,292.22-3,438.33-1,318.38

Finding the Fourth Proportional to 2,292.22, 3,438.33 and 1,318.38

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Solution

The fourth proportional to 2,292.22, 3,438.33 and 1,318.38 is: 1,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,292.22 : 3,438.33 = 1,318.38 : x
  2. Step 2: Convert to fraction form
    2,292.22/3,438.33 = 1,318.38/x
  3. Step 3: Cross multiply
    2,292.22x = 3,438.33 × 1,318.38
  4. Step 4: Simplify right side
    2,292.22x = 4,533,025.51
  5. Step 5: Solve for x
    x = 4,533,025.51/2,292.22
  6. Step 6: Final answer
    x = 1,977.57

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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.