Home / 3,832.08-5,288.40-2,153.81

Finding the Fourth Proportional to 3,832.08, 5,288.40 and 2,153.81

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Solution

The fourth proportional to 3,832.08, 5,288.40 and 2,153.81 is: 2,972.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,832.08 : 5,288.40 = 2,153.81 : x
  2. Step 2: Convert to fraction form
    3,832.08/5,288.40 = 2,153.81/x
  3. Step 3: Cross multiply
    3,832.08x = 5,288.40 × 2,153.81
  4. Step 4: Simplify right side
    3,832.08x = 11,390,198.03
  5. Step 5: Solve for x
    x = 11,390,198.03/3,832.08
  6. Step 6: Final answer
    x = 2,972.33

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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.