Home / 3,787.16-5,226.21-2,108.55

Finding the Fourth Proportional to 3,787.16, 5,226.21 and 2,108.55

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Solution

The fourth proportional to 3,787.16, 5,226.21 and 2,108.55 is: 2,909.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.16 : 5,226.21 = 2,108.55 : x
  2. Step 2: Convert to fraction form
    3,787.16/5,226.21 = 2,108.55/x
  3. Step 3: Cross multiply
    3,787.16x = 5,226.21 × 2,108.55
  4. Step 4: Simplify right side
    3,787.16x = 11,019,744.69
  5. Step 5: Solve for x
    x = 11,019,744.69/3,787.16
  6. Step 6: Final answer
    x = 2,909.77

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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.