Home / 5,239.32-7,858.96-1,343.72

Finding the Fourth Proportional to 5,239.32, 7,858.96 and 1,343.72

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Solution

The fourth proportional to 5,239.32, 7,858.96 and 1,343.72 is: 2,015.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.32 : 7,858.96 = 1,343.72 : x
  2. Step 2: Convert to fraction form
    5,239.32/7,858.96 = 1,343.72/x
  3. Step 3: Cross multiply
    5,239.32x = 7,858.96 × 1,343.72
  4. Step 4: Simplify right side
    5,239.32x = 10,560,241.73
  5. Step 5: Solve for x
    x = 10,560,241.73/5,239.32
  6. Step 6: Final answer
    x = 2,015.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.