Home / 3,865.21-5,330.80-2,372.08

Finding the Fourth Proportional to 3,865.21, 5,330.80 and 2,372.08

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Solution

The fourth proportional to 3,865.21, 5,330.80 and 2,372.08 is: 3,271.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.21 : 5,330.80 = 2,372.08 : x
  2. Step 2: Convert to fraction form
    3,865.21/5,330.80 = 2,372.08/x
  3. Step 3: Cross multiply
    3,865.21x = 5,330.80 × 2,372.08
  4. Step 4: Simplify right side
    3,865.21x = 12,645,084.06
  5. Step 5: Solve for x
    x = 12,645,084.06/3,865.21
  6. Step 6: Final answer
    x = 3,271.51

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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.