Home / 3,221.70-4,830.20-1,029.18

Finding the Fourth Proportional to 3,221.70, 4,830.20 and 1,029.18

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Solution

The fourth proportional to 3,221.70, 4,830.20 and 1,029.18 is: 1,543.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.70 : 4,830.20 = 1,029.18 : x
  2. Step 2: Convert to fraction form
    3,221.70/4,830.20 = 1,029.18/x
  3. Step 3: Cross multiply
    3,221.70x = 4,830.20 × 1,029.18
  4. Step 4: Simplify right side
    3,221.70x = 4,971,145.24
  5. Step 5: Solve for x
    x = 4,971,145.24/3,221.70
  6. Step 6: Final answer
    x = 1,543.02

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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.