Home / 5,239.13-7,859.90-1,776.38

Finding the Fourth Proportional to 5,239.13, 7,859.90 and 1,776.38

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Solution

The fourth proportional to 5,239.13, 7,859.90 and 1,776.38 is: 2,664.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.13 : 7,859.90 = 1,776.38 : x
  2. Step 2: Convert to fraction form
    5,239.13/7,859.90 = 1,776.38/x
  3. Step 3: Cross multiply
    5,239.13x = 7,859.90 × 1,776.38
  4. Step 4: Simplify right side
    5,239.13x = 13,962,134.30
  5. Step 5: Solve for x
    x = 13,962,134.30/5,239.13
  6. Step 6: Final answer
    x = 2,664.97

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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.