Home / 5,247.50-7,241.44-2,889.66

Finding the Fourth Proportional to 5,247.50, 7,241.44 and 2,889.66

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Solution

The fourth proportional to 5,247.50, 7,241.44 and 2,889.66 is: 3,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.50 : 7,241.44 = 2,889.66 : x
  2. Step 2: Convert to fraction form
    5,247.50/7,241.44 = 2,889.66/x
  3. Step 3: Cross multiply
    5,247.50x = 7,241.44 × 2,889.66
  4. Step 4: Simplify right side
    5,247.50x = 20,925,299.51
  5. Step 5: Solve for x
    x = 20,925,299.51/5,247.50
  6. Step 6: Final answer
    x = 3,987.67

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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.