Home / 2,787.10-4,182.48-1,055.74

Finding the Fourth Proportional to 2,787.10, 4,182.48 and 1,055.74

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Solution

The fourth proportional to 2,787.10, 4,182.48 and 1,055.74 is: 1,584.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.10 : 4,182.48 = 1,055.74 : x
  2. Step 2: Convert to fraction form
    2,787.10/4,182.48 = 1,055.74/x
  3. Step 3: Cross multiply
    2,787.10x = 4,182.48 × 1,055.74
  4. Step 4: Simplify right side
    2,787.10x = 4,415,611.44
  5. Step 5: Solve for x
    x = 4,415,611.44/2,787.10
  6. Step 6: Final answer
    x = 1,584.30

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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.