Home / 6,787.70-10,182.15-1,857.36

Finding the Fourth Proportional to 6,787.70, 10,182.15 and 1,857.36

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Solution

The fourth proportional to 6,787.70, 10,182.15 and 1,857.36 is: 2,786.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,787.70 : 10,182.15 = 1,857.36 : x
  2. Step 2: Convert to fraction form
    6,787.70/10,182.15 = 1,857.36/x
  3. Step 3: Cross multiply
    6,787.70x = 10,182.15 × 1,857.36
  4. Step 4: Simplify right side
    6,787.70x = 18,911,918.12
  5. Step 5: Solve for x
    x = 18,911,918.12/6,787.70
  6. Step 6: Final answer
    x = 2,786.20

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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.