Home / 5,242.12-7,234.16-2,884.20

Finding the Fourth Proportional to 5,242.12, 7,234.16 and 2,884.20

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Solution

The fourth proportional to 5,242.12, 7,234.16 and 2,884.20 is: 3,980.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.12 : 7,234.16 = 2,884.20 : x
  2. Step 2: Convert to fraction form
    5,242.12/7,234.16 = 2,884.20/x
  3. Step 3: Cross multiply
    5,242.12x = 7,234.16 × 2,884.20
  4. Step 4: Simplify right side
    5,242.12x = 20,864,764.27
  5. Step 5: Solve for x
    x = 20,864,764.27/5,242.12
  6. Step 6: Final answer
    x = 3,980.21

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1.5x scale

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.