Home / 9,220.86-13,831.92-2,646.90

Finding the Fourth Proportional to 9,220.86, 13,831.92 and 2,646.90

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Solution

The fourth proportional to 9,220.86, 13,831.92 and 2,646.90 is: 3,970.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,220.86 : 13,831.92 = 2,646.90 : x
  2. Step 2: Convert to fraction form
    9,220.86/13,831.92 = 2,646.90/x
  3. Step 3: Cross multiply
    9,220.86x = 13,831.92 × 2,646.90
  4. Step 4: Simplify right side
    9,220.86x = 36,611,709.05
  5. Step 5: Solve for x
    x = 36,611,709.05/9,220.86
  6. Step 6: Final answer
    x = 3,970.53

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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.