Home / 7,886.90-11,831.10-2,960.06

Finding the Fourth Proportional to 7,886.90, 11,831.10 and 2,960.06

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Solution

The fourth proportional to 7,886.90, 11,831.10 and 2,960.06 is: 4,440.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.90 : 11,831.10 = 2,960.06 : x
  2. Step 2: Convert to fraction form
    7,886.90/11,831.10 = 2,960.06/x
  3. Step 3: Cross multiply
    7,886.90x = 11,831.10 × 2,960.06
  4. Step 4: Simplify right side
    7,886.90x = 35,020,765.87
  5. Step 5: Solve for x
    x = 35,020,765.87/7,886.90
  6. Step 6: Final answer
    x = 4,440.37

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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.