Home / 3,787.83-5,681.38-1,190.31

Finding the Fourth Proportional to 3,787.83, 5,681.38 and 1,190.31

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Solution

The fourth proportional to 3,787.83, 5,681.38 and 1,190.31 is: 1,785.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.83 : 5,681.38 = 1,190.31 : x
  2. Step 2: Convert to fraction form
    3,787.83/5,681.38 = 1,190.31/x
  3. Step 3: Cross multiply
    3,787.83x = 5,681.38 × 1,190.31
  4. Step 4: Simplify right side
    3,787.83x = 6,762,603.43
  5. Step 5: Solve for x
    x = 6,762,603.43/3,787.83
  6. Step 6: Final answer
    x = 1,785.35

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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.