Home / 2,981.22-4,470.09-900.60

Finding the Fourth Proportional to 2,981.22, 4,470.09 and 900.60

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Solution

The fourth proportional to 2,981.22, 4,470.09 and 900.60 is: 1,350.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.22 : 4,470.09 = 900.60 : x
  2. Step 2: Convert to fraction form
    2,981.22/4,470.09 = 900.60/x
  3. Step 3: Cross multiply
    2,981.22x = 4,470.09 × 900.60
  4. Step 4: Simplify right side
    2,981.22x = 4,025,763.05
  5. Step 5: Solve for x
    x = 4,025,763.05/2,981.22
  6. Step 6: Final answer
    x = 1,350.37

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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.