Home / 3,189.28-4,399.88-2,303.12

Finding the Fourth Proportional to 3,189.28, 4,399.88 and 2,303.12

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Solution

The fourth proportional to 3,189.28, 4,399.88 and 2,303.12 is: 3,177.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.28 : 4,399.88 = 2,303.12 : x
  2. Step 2: Convert to fraction form
    3,189.28/4,399.88 = 2,303.12/x
  3. Step 3: Cross multiply
    3,189.28x = 4,399.88 × 2,303.12
  4. Step 4: Simplify right side
    3,189.28x = 10,133,451.63
  5. Step 5: Solve for x
    x = 10,133,451.63/3,189.28
  6. Step 6: Final answer
    x = 3,177.35

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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.