Home / 3,687.85-5,533.80-2,130.04

Finding the Fourth Proportional to 3,687.85, 5,533.80 and 2,130.04

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Solution

The fourth proportional to 3,687.85, 5,533.80 and 2,130.04 is: 3,196.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.85 : 5,533.80 = 2,130.04 : x
  2. Step 2: Convert to fraction form
    3,687.85/5,533.80 = 2,130.04/x
  3. Step 3: Cross multiply
    3,687.85x = 5,533.80 × 2,130.04
  4. Step 4: Simplify right side
    3,687.85x = 11,787,215.35
  5. Step 5: Solve for x
    x = 11,787,215.35/3,687.85
  6. Step 6: Final answer
    x = 3,196.23

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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.