Home / 2,445.20-3,665.44-2,221.46

Finding the Fourth Proportional to 2,445.20, 3,665.44 and 2,221.46

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Solution

The fourth proportional to 2,445.20, 3,665.44 and 2,221.46 is: 3,330.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.20 : 3,665.44 = 2,221.46 : x
  2. Step 2: Convert to fraction form
    2,445.20/3,665.44 = 2,221.46/x
  3. Step 3: Cross multiply
    2,445.20x = 3,665.44 × 2,221.46
  4. Step 4: Simplify right side
    2,445.20x = 8,142,628.34
  5. Step 5: Solve for x
    x = 8,142,628.34/2,445.20
  6. Step 6: Final answer
    x = 3,330.05

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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.