Home / 3,219.24-4,831.28-1,489.08

Finding the Fourth Proportional to 3,219.24, 4,831.28 and 1,489.08

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Solution

The fourth proportional to 3,219.24, 4,831.28 and 1,489.08 is: 2,234.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.24 : 4,831.28 = 1,489.08 : x
  2. Step 2: Convert to fraction form
    3,219.24/4,831.28 = 1,489.08/x
  3. Step 3: Cross multiply
    3,219.24x = 4,831.28 × 1,489.08
  4. Step 4: Simplify right side
    3,219.24x = 7,194,162.42
  5. Step 5: Solve for x
    x = 7,194,162.42/3,219.24
  6. Step 6: Final answer
    x = 2,234.74

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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.