Home / 5,242.29-7,234.47-2,884.56

Finding the Fourth Proportional to 5,242.29, 7,234.47 and 2,884.56

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Solution

The fourth proportional to 5,242.29, 7,234.47 and 2,884.56 is: 3,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.29 : 7,234.47 = 2,884.56 : x
  2. Step 2: Convert to fraction form
    5,242.29/7,234.47 = 2,884.56/x
  3. Step 3: Cross multiply
    5,242.29x = 7,234.47 × 2,884.56
  4. Step 4: Simplify right side
    5,242.29x = 20,868,262.78
  5. Step 5: Solve for x
    x = 20,868,262.78/5,242.29
  6. Step 6: Final answer
    x = 3,980.75

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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.