Home / 3,787.21-5,681.58-1,189.54

Finding the Fourth Proportional to 3,787.21, 5,681.58 and 1,189.54

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Solution

The fourth proportional to 3,787.21, 5,681.58 and 1,189.54 is: 1,784.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.21 : 5,681.58 = 1,189.54 : x
  2. Step 2: Convert to fraction form
    3,787.21/5,681.58 = 1,189.54/x
  3. Step 3: Cross multiply
    3,787.21x = 5,681.58 × 1,189.54
  4. Step 4: Simplify right side
    3,787.21x = 6,758,466.67
  5. Step 5: Solve for x
    x = 6,758,466.67/3,787.21
  6. Step 6: Final answer
    x = 1,784.55

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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.