Home / 2,787.08-3,844.98-1,855.88

Finding the Fourth Proportional to 2,787.08, 3,844.98 and 1,855.88

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Solution

The fourth proportional to 2,787.08, 3,844.98 and 1,855.88 is: 2,560.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.08 : 3,844.98 = 1,855.88 : x
  2. Step 2: Convert to fraction form
    2,787.08/3,844.98 = 1,855.88/x
  3. Step 3: Cross multiply
    2,787.08x = 3,844.98 × 1,855.88
  4. Step 4: Simplify right side
    2,787.08x = 7,135,821.48
  5. Step 5: Solve for x
    x = 7,135,821.48/2,787.08
  6. Step 6: Final answer
    x = 2,560.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.