Home / 5,247.74-7,241.89-2,857.73

Finding the Fourth Proportional to 5,247.74, 7,241.89 and 2,857.73

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Solution

The fourth proportional to 5,247.74, 7,241.89 and 2,857.73 is: 3,943.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.74 : 7,241.89 = 2,857.73 : x
  2. Step 2: Convert to fraction form
    5,247.74/7,241.89 = 2,857.73/x
  3. Step 3: Cross multiply
    5,247.74x = 7,241.89 × 2,857.73
  4. Step 4: Simplify right side
    5,247.74x = 20,695,315.81
  5. Step 5: Solve for x
    x = 20,695,315.81/5,247.74
  6. Step 6: Final answer
    x = 3,943.67

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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.