Home / 5,207.25-7,811.36-1,697.12

Finding the Fourth Proportional to 5,207.25, 7,811.36 and 1,697.12

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Solution

The fourth proportional to 5,207.25, 7,811.36 and 1,697.12 is: 2,545.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.25 : 7,811.36 = 1,697.12 : x
  2. Step 2: Convert to fraction form
    5,207.25/7,811.36 = 1,697.12/x
  3. Step 3: Cross multiply
    5,207.25x = 7,811.36 × 1,697.12
  4. Step 4: Simplify right side
    5,207.25x = 13,256,767.74
  5. Step 5: Solve for x
    x = 13,256,767.74/5,207.25
  6. Step 6: Final answer
    x = 2,545.83

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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.