Home / 5,247.60-7,241.64-2,889.69

Finding the Fourth Proportional to 5,247.60, 7,241.64 and 2,889.69

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Solution

The fourth proportional to 5,247.60, 7,241.64 and 2,889.69 is: 3,987.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.60 : 7,241.64 = 2,889.69 : x
  2. Step 2: Convert to fraction form
    5,247.60/7,241.64 = 2,889.69/x
  3. Step 3: Cross multiply
    5,247.60x = 7,241.64 × 2,889.69
  4. Step 4: Simplify right side
    5,247.60x = 20,926,094.69
  5. Step 5: Solve for x
    x = 20,926,094.69/5,247.60
  6. Step 6: Final answer
    x = 3,987.75

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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.