Home / 3,220.35-4,830.90-1,029.30

Finding the Fourth Proportional to 3,220.35, 4,830.90 and 1,029.30

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Solution

The fourth proportional to 3,220.35, 4,830.90 and 1,029.30 is: 1,544.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.35 : 4,830.90 = 1,029.30 : x
  2. Step 2: Convert to fraction form
    3,220.35/4,830.90 = 1,029.30/x
  3. Step 3: Cross multiply
    3,220.35x = 4,830.90 × 1,029.30
  4. Step 4: Simplify right side
    3,220.35x = 4,972,445.37
  5. Step 5: Solve for x
    x = 4,972,445.37/3,220.35
  6. Step 6: Final answer
    x = 1,544.07

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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.