Home / 5,197.90-7,790.96-1,864.61

Finding the Fourth Proportional to 5,197.90, 7,790.96 and 1,864.61

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Solution

The fourth proportional to 5,197.90, 7,790.96 and 1,864.61 is: 2,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.90 : 7,790.96 = 1,864.61 : x
  2. Step 2: Convert to fraction form
    5,197.90/7,790.96 = 1,864.61/x
  3. Step 3: Cross multiply
    5,197.90x = 7,790.96 × 1,864.61
  4. Step 4: Simplify right side
    5,197.90x = 14,527,101.93
  5. Step 5: Solve for x
    x = 14,527,101.93/5,197.90
  6. Step 6: Final answer
    x = 2,794.80

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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.