Home / 3,201.20-4,800.12-1,009.34

Finding the Fourth Proportional to 3,201.20, 4,800.12 and 1,009.34

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Solution

The fourth proportional to 3,201.20, 4,800.12 and 1,009.34 is: 1,513.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.20 : 4,800.12 = 1,009.34 : x
  2. Step 2: Convert to fraction form
    3,201.20/4,800.12 = 1,009.34/x
  3. Step 3: Cross multiply
    3,201.20x = 4,800.12 × 1,009.34
  4. Step 4: Simplify right side
    3,201.20x = 4,844,953.12
  5. Step 5: Solve for x
    x = 4,844,953.12/3,201.20
  6. Step 6: Final answer
    x = 1,513.48

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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.