Home / 2,787.08-3,844.32-1,739.72

Finding the Fourth Proportional to 2,787.08, 3,844.32 and 1,739.72

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Solution

The fourth proportional to 2,787.08, 3,844.32 and 1,739.72 is: 2,399.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.08 : 3,844.32 = 1,739.72 : x
  2. Step 2: Convert to fraction form
    2,787.08/3,844.32 = 1,739.72/x
  3. Step 3: Cross multiply
    2,787.08x = 3,844.32 × 1,739.72
  4. Step 4: Simplify right side
    2,787.08x = 6,688,040.39
  5. Step 5: Solve for x
    x = 6,688,040.39/2,787.08
  6. Step 6: Final answer
    x = 2,399.66

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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.