Home / 7,763.13-11,645.89-2,831.65

Finding the Fourth Proportional to 7,763.13, 11,645.89 and 2,831.65

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Solution

The fourth proportional to 7,763.13, 11,645.89 and 2,831.65 is: 4,247.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.13 : 11,645.89 = 2,831.65 : x
  2. Step 2: Convert to fraction form
    7,763.13/11,645.89 = 2,831.65/x
  3. Step 3: Cross multiply
    7,763.13x = 11,645.89 × 2,831.65
  4. Step 4: Simplify right side
    7,763.13x = 32,977,048.22
  5. Step 5: Solve for x
    x = 32,977,048.22/7,763.13
  6. Step 6: Final answer
    x = 4,247.91

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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.