Home / 2,787.55-4,181.63-1,226.88

Finding the Fourth Proportional to 2,787.55, 4,181.63 and 1,226.88

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Solution

The fourth proportional to 2,787.55, 4,181.63 and 1,226.88 is: 1,840.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.55 : 4,181.63 = 1,226.88 : x
  2. Step 2: Convert to fraction form
    2,787.55/4,181.63 = 1,226.88/x
  3. Step 3: Cross multiply
    2,787.55x = 4,181.63 × 1,226.88
  4. Step 4: Simplify right side
    2,787.55x = 5,130,352.08
  5. Step 5: Solve for x
    x = 5,130,352.08/2,787.55
  6. Step 6: Final answer
    x = 1,840.45

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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.