Home / 3,890.40-5,836.32-1,551.48

Finding the Fourth Proportional to 3,890.40, 5,836.32 and 1,551.48

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Solution

The fourth proportional to 3,890.40, 5,836.32 and 1,551.48 is: 2,327.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.40 : 5,836.32 = 1,551.48 : x
  2. Step 2: Convert to fraction form
    3,890.40/5,836.32 = 1,551.48/x
  3. Step 3: Cross multiply
    3,890.40x = 5,836.32 × 1,551.48
  4. Step 4: Simplify right side
    3,890.40x = 9,054,933.75
  5. Step 5: Solve for x
    x = 9,054,933.75/3,890.40
  6. Step 6: Final answer
    x = 2,327.51

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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.