Home / 3,212.06-4,817.40-1,020.20

Finding the Fourth Proportional to 3,212.06, 4,817.40 and 1,020.20

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Solution

The fourth proportional to 3,212.06, 4,817.40 and 1,020.20 is: 1,530.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.06 : 4,817.40 = 1,020.20 : x
  2. Step 2: Convert to fraction form
    3,212.06/4,817.40 = 1,020.20/x
  3. Step 3: Cross multiply
    3,212.06x = 4,817.40 × 1,020.20
  4. Step 4: Simplify right side
    3,212.06x = 4,914,711.48
  5. Step 5: Solve for x
    x = 4,914,711.48/3,212.06
  6. Step 6: Final answer
    x = 1,530.08

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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.