Home / 2,388.21-3,563.13-2,125.08

Finding the Fourth Proportional to 2,388.21, 3,563.13 and 2,125.08

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Solution

The fourth proportional to 2,388.21, 3,563.13 and 2,125.08 is: 3,170.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.21 : 3,563.13 = 2,125.08 : x
  2. Step 2: Convert to fraction form
    2,388.21/3,563.13 = 2,125.08/x
  3. Step 3: Cross multiply
    2,388.21x = 3,563.13 × 2,125.08
  4. Step 4: Simplify right side
    2,388.21x = 7,571,936.30
  5. Step 5: Solve for x
    x = 7,571,936.30/2,388.21
  6. Step 6: Final answer
    x = 3,170.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.