Home / 3,780.64-5,663.64-2,132.14

Finding the Fourth Proportional to 3,780.64, 5,663.64 and 2,132.14

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Solution

The fourth proportional to 3,780.64, 5,663.64 and 2,132.14 is: 3,194.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.64 : 5,663.64 = 2,132.14 : x
  2. Step 2: Convert to fraction form
    3,780.64/5,663.64 = 2,132.14/x
  3. Step 3: Cross multiply
    3,780.64x = 5,663.64 × 2,132.14
  4. Step 4: Simplify right side
    3,780.64x = 12,075,673.39
  5. Step 5: Solve for x
    x = 12,075,673.39/3,780.64
  6. Step 6: Final answer
    x = 3,194.08

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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.