Home / 5,247.51-7,241.59-2,889.67

Finding the Fourth Proportional to 5,247.51, 7,241.59 and 2,889.67

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Solution

The fourth proportional to 5,247.51, 7,241.59 and 2,889.67 is: 3,987.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.51 : 7,241.59 = 2,889.67 : x
  2. Step 2: Convert to fraction form
    5,247.51/7,241.59 = 2,889.67/x
  3. Step 3: Cross multiply
    5,247.51x = 7,241.59 × 2,889.67
  4. Step 4: Simplify right side
    5,247.51x = 20,925,790.93
  5. Step 5: Solve for x
    x = 20,925,790.93/5,247.51
  6. Step 6: Final answer
    x = 3,987.76

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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.