Home / 4,203.20-5,799.12-2,806.40

Finding the Fourth Proportional to 4,203.20, 5,799.12 and 2,806.40

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Solution

The fourth proportional to 4,203.20, 5,799.12 and 2,806.40 is: 3,871.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,203.20 : 5,799.12 = 2,806.40 : x
  2. Step 2: Convert to fraction form
    4,203.20/5,799.12 = 2,806.40/x
  3. Step 3: Cross multiply
    4,203.20x = 5,799.12 × 2,806.40
  4. Step 4: Simplify right side
    4,203.20x = 16,274,650.37
  5. Step 5: Solve for x
    x = 16,274,650.37/4,203.20
  6. Step 6: Final answer
    x = 3,871.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.