Home / 3,851.60-5,767.32-2,986.64

Finding the Fourth Proportional to 3,851.60, 5,767.32 and 2,986.64

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Solution

The fourth proportional to 3,851.60, 5,767.32 and 2,986.64 is: 4,472.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.60 : 5,767.32 = 2,986.64 : x
  2. Step 2: Convert to fraction form
    3,851.60/5,767.32 = 2,986.64/x
  3. Step 3: Cross multiply
    3,851.60x = 5,767.32 × 2,986.64
  4. Step 4: Simplify right side
    3,851.60x = 17,224,908.60
  5. Step 5: Solve for x
    x = 17,224,908.60/3,851.60
  6. Step 6: Final answer
    x = 4,472.14

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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.