Home / 3,147.36-4,719.28-2,792.08

Finding the Fourth Proportional to 3,147.36, 4,719.28 and 2,792.08

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Solution

The fourth proportional to 3,147.36, 4,719.28 and 2,792.08 is: 4,186.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.36 : 4,719.28 = 2,792.08 : x
  2. Step 2: Convert to fraction form
    3,147.36/4,719.28 = 2,792.08/x
  3. Step 3: Cross multiply
    3,147.36x = 4,719.28 × 2,792.08
  4. Step 4: Simplify right side
    3,147.36x = 13,176,607.30
  5. Step 5: Solve for x
    x = 13,176,607.30/3,147.36
  6. Step 6: Final answer
    x = 4,186.56

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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.