Home / 5,134.65-7,085.82-2,776.80

Finding the Fourth Proportional to 5,134.65, 7,085.82 and 2,776.80

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Solution

The fourth proportional to 5,134.65, 7,085.82 and 2,776.80 is: 3,831.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,134.65 : 7,085.82 = 2,776.80 : x
  2. Step 2: Convert to fraction form
    5,134.65/7,085.82 = 2,776.80/x
  3. Step 3: Cross multiply
    5,134.65x = 7,085.82 × 2,776.80
  4. Step 4: Simplify right side
    5,134.65x = 19,675,904.98
  5. Step 5: Solve for x
    x = 19,675,904.98/5,134.65
  6. Step 6: Final answer
    x = 3,831.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.