Home / 2,525.20-3,787.81-881.75

Finding the Fourth Proportional to 2,525.20, 3,787.81 and 881.75

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Solution

The fourth proportional to 2,525.20, 3,787.81 and 881.75 is: 1,322.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,525.20 : 3,787.81 = 881.75 : x
  2. Step 2: Convert to fraction form
    2,525.20/3,787.81 = 881.75/x
  3. Step 3: Cross multiply
    2,525.20x = 3,787.81 × 881.75
  4. Step 4: Simplify right side
    2,525.20x = 3,339,878.12
  5. Step 5: Solve for x
    x = 3,339,878.12/2,525.20
  6. Step 6: Final answer
    x = 1,322.62

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1.5x scale

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.