Home / 2,291.78-3,438.89-1,369.14

Finding the Fourth Proportional to 2,291.78, 3,438.89 and 1,369.14

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Solution

The fourth proportional to 2,291.78, 3,438.89 and 1,369.14 is: 2,054.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.78 : 3,438.89 = 1,369.14 : x
  2. Step 2: Convert to fraction form
    2,291.78/3,438.89 = 1,369.14/x
  3. Step 3: Cross multiply
    2,291.78x = 3,438.89 × 1,369.14
  4. Step 4: Simplify right side
    2,291.78x = 4,708,315.01
  5. Step 5: Solve for x
    x = 4,708,315.01/2,291.78
  6. Step 6: Final answer
    x = 2,054.44

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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.