Home / 3,221.19-4,831.70-1,030.05

Finding the Fourth Proportional to 3,221.19, 4,831.70 and 1,030.05

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Solution

The fourth proportional to 3,221.19, 4,831.70 and 1,030.05 is: 1,545.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.19 : 4,831.70 = 1,030.05 : x
  2. Step 2: Convert to fraction form
    3,221.19/4,831.70 = 1,030.05/x
  3. Step 3: Cross multiply
    3,221.19x = 4,831.70 × 1,030.05
  4. Step 4: Simplify right side
    3,221.19x = 4,976,887.43
  5. Step 5: Solve for x
    x = 4,976,887.43/3,221.19
  6. Step 6: Final answer
    x = 1,545.05

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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.