Home / 5,221.42-7,832.70-1,711.30

Finding the Fourth Proportional to 5,221.42, 7,832.70 and 1,711.30

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Solution

The fourth proportional to 5,221.42, 7,832.70 and 1,711.30 is: 2,567.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.42 : 7,832.70 = 1,711.30 : x
  2. Step 2: Convert to fraction form
    5,221.42/7,832.70 = 1,711.30/x
  3. Step 3: Cross multiply
    5,221.42x = 7,832.70 × 1,711.30
  4. Step 4: Simplify right side
    5,221.42x = 13,404,099.51
  5. Step 5: Solve for x
    x = 13,404,099.51/5,221.42
  6. Step 6: Final answer
    x = 2,567.14

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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.