Home / 5,242.34-7,234.79-2,884.64

Finding the Fourth Proportional to 5,242.34, 7,234.79 and 2,884.64

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Solution

The fourth proportional to 5,242.34, 7,234.79 and 2,884.64 is: 3,980.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.34 : 7,234.79 = 2,884.64 : x
  2. Step 2: Convert to fraction form
    5,242.34/7,234.79 = 2,884.64/x
  3. Step 3: Cross multiply
    5,242.34x = 7,234.79 × 2,884.64
  4. Step 4: Simplify right side
    5,242.34x = 20,869,714.03
  5. Step 5: Solve for x
    x = 20,869,714.03/5,242.34
  6. Step 6: Final answer
    x = 3,980.99

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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.