Home / 2,150.20-3,225.30-2,020.60

Finding the Fourth Proportional to 2,150.20, 3,225.30 and 2,020.60

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Solution

The fourth proportional to 2,150.20, 3,225.30 and 2,020.60 is: 3,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,150.20 : 3,225.30 = 2,020.60 : x
  2. Step 2: Convert to fraction form
    2,150.20/3,225.30 = 2,020.60/x
  3. Step 3: Cross multiply
    2,150.20x = 3,225.30 × 2,020.60
  4. Step 4: Simplify right side
    2,150.20x = 6,517,041.18
  5. Step 5: Solve for x
    x = 6,517,041.18/2,150.20
  6. Step 6: Final answer
    x = 3,030.90

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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.