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Finding the Fourth Proportional to 7,888.22, 11,831.86 and 2,957.44

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Solution

The fourth proportional to 7,888.22, 11,831.86 and 2,957.44 is: 4,435.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.22 : 11,831.86 = 2,957.44 : x
  2. Step 2: Convert to fraction form
    7,888.22/11,831.86 = 2,957.44/x
  3. Step 3: Cross multiply
    7,888.22x = 11,831.86 × 2,957.44
  4. Step 4: Simplify right side
    7,888.22x = 34,992,016.04
  5. Step 5: Solve for x
    x = 34,992,016.04/7,888.22
  6. Step 6: Final answer
    x = 4,435.98

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1.5x scale

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.