Home / 2,272.20-3,405.25-1,230.63

Finding the Fourth Proportional to 2,272.20, 3,405.25 and 1,230.63

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Solution

The fourth proportional to 2,272.20, 3,405.25 and 1,230.63 is: 1,844.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.20 : 3,405.25 = 1,230.63 : x
  2. Step 2: Convert to fraction form
    2,272.20/3,405.25 = 1,230.63/x
  3. Step 3: Cross multiply
    2,272.20x = 3,405.25 × 1,230.63
  4. Step 4: Simplify right side
    2,272.20x = 4,190,602.81
  5. Step 5: Solve for x
    x = 4,190,602.81/2,272.20
  6. Step 6: Final answer
    x = 1,844.29

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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.