Home / 2,787.02-3,844.26-1,790.72

Finding the Fourth Proportional to 2,787.02, 3,844.26 and 1,790.72

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Solution

The fourth proportional to 2,787.02, 3,844.26 and 1,790.72 is: 2,470.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.02 : 3,844.26 = 1,790.72 : x
  2. Step 2: Convert to fraction form
    2,787.02/3,844.26 = 1,790.72/x
  3. Step 3: Cross multiply
    2,787.02x = 3,844.26 × 1,790.72
  4. Step 4: Simplify right side
    2,787.02x = 6,883,993.27
  5. Step 5: Solve for x
    x = 6,883,993.27/2,787.02
  6. Step 6: Final answer
    x = 2,470.02

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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.