Home / 6,787.90-10,182.31-1,857.13

Finding the Fourth Proportional to 6,787.90, 10,182.31 and 1,857.13

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Solution

The fourth proportional to 6,787.90, 10,182.31 and 1,857.13 is: 2,785.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,787.90 : 10,182.31 = 1,857.13 : x
  2. Step 2: Convert to fraction form
    6,787.90/10,182.31 = 1,857.13/x
  3. Step 3: Cross multiply
    6,787.90x = 10,182.31 × 1,857.13
  4. Step 4: Simplify right side
    6,787.90x = 18,909,843.27
  5. Step 5: Solve for x
    x = 18,909,843.27/6,787.90
  6. Step 6: Final answer
    x = 2,785.82

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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.