Home / 2,291.87-3,438.32-1,251.33

Finding the Fourth Proportional to 2,291.87, 3,438.32 and 1,251.33

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Solution

The fourth proportional to 2,291.87, 3,438.32 and 1,251.33 is: 1,877.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.87 : 3,438.32 = 1,251.33 : x
  2. Step 2: Convert to fraction form
    2,291.87/3,438.32 = 1,251.33/x
  3. Step 3: Cross multiply
    2,291.87x = 3,438.32 × 1,251.33
  4. Step 4: Simplify right side
    2,291.87x = 4,302,466.71
  5. Step 5: Solve for x
    x = 4,302,466.71/2,291.87
  6. Step 6: Final answer
    x = 1,877.28

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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.