Home / 2,293.41-3,440.12-1,318.89

Finding the Fourth Proportional to 2,293.41, 3,440.12 and 1,318.89

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Solution

The fourth proportional to 2,293.41, 3,440.12 and 1,318.89 is: 1,978.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,293.41 : 3,440.12 = 1,318.89 : x
  2. Step 2: Convert to fraction form
    2,293.41/3,440.12 = 1,318.89/x
  3. Step 3: Cross multiply
    2,293.41x = 3,440.12 × 1,318.89
  4. Step 4: Simplify right side
    2,293.41x = 4,537,139.87
  5. Step 5: Solve for x
    x = 4,537,139.87/2,293.41
  6. Step 6: Final answer
    x = 1,978.34

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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.