Home / 4,719.12-7,072.20-2,984.64

Finding the Fourth Proportional to 4,719.12, 7,072.20 and 2,984.64

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Solution

The fourth proportional to 4,719.12, 7,072.20 and 2,984.64 is: 4,472.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.12 : 7,072.20 = 2,984.64 : x
  2. Step 2: Convert to fraction form
    4,719.12/7,072.20 = 2,984.64/x
  3. Step 3: Cross multiply
    4,719.12x = 7,072.20 × 2,984.64
  4. Step 4: Simplify right side
    4,719.12x = 21,107,971.01
  5. Step 5: Solve for x
    x = 21,107,971.01/4,719.12
  6. Step 6: Final answer
    x = 4,472.86

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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.