Home / 6,787.45-10,181.78-1,857.11

Finding the Fourth Proportional to 6,787.45, 10,181.78 and 1,857.11

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Solution

The fourth proportional to 6,787.45, 10,181.78 and 1,857.11 is: 2,785.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,787.45 : 10,181.78 = 1,857.11 : x
  2. Step 2: Convert to fraction form
    6,787.45/10,181.78 = 1,857.11/x
  3. Step 3: Cross multiply
    6,787.45x = 10,181.78 × 1,857.11
  4. Step 4: Simplify right side
    6,787.45x = 18,908,676.17
  5. Step 5: Solve for x
    x = 18,908,676.17/6,787.45
  6. Step 6: Final answer
    x = 2,785.83

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1.5x scale

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.