Home / 3,221.71-4,830.20-1,029.17

Finding the Fourth Proportional to 3,221.71, 4,830.20 and 1,029.17

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Solution

The fourth proportional to 3,221.71, 4,830.20 and 1,029.17 is: 1,543.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.71 : 4,830.20 = 1,029.17 : x
  2. Step 2: Convert to fraction form
    3,221.71/4,830.20 = 1,029.17/x
  3. Step 3: Cross multiply
    3,221.71x = 4,830.20 × 1,029.17
  4. Step 4: Simplify right side
    3,221.71x = 4,971,091.79
  5. Step 5: Solve for x
    x = 4,971,091.79/3,221.71
  6. Step 6: Final answer
    x = 1,543.00

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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.