Home / 7,219.82-10,831.20-4,101.32

Finding the Fourth Proportional to 7,219.82, 10,831.20 and 4,101.32

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Solution

The fourth proportional to 7,219.82, 10,831.20 and 4,101.32 is: 6,152.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.82 : 10,831.20 = 4,101.32 : x
  2. Step 2: Convert to fraction form
    7,219.82/10,831.20 = 4,101.32/x
  3. Step 3: Cross multiply
    7,219.82x = 10,831.20 × 4,101.32
  4. Step 4: Simplify right side
    7,219.82x = 44,422,217.18
  5. Step 5: Solve for x
    x = 44,422,217.18/7,219.82
  6. Step 6: Final answer
    x = 6,152.82

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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.