Home / 3,955.20-5,459.30-2,383.39

Finding the Fourth Proportional to 3,955.20, 5,459.30 and 2,383.39

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Solution

The fourth proportional to 3,955.20, 5,459.30 and 2,383.39 is: 3,289.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.20 : 5,459.30 = 2,383.39 : x
  2. Step 2: Convert to fraction form
    3,955.20/5,459.30 = 2,383.39/x
  3. Step 3: Cross multiply
    3,955.20x = 5,459.30 × 2,383.39
  4. Step 4: Simplify right side
    3,955.20x = 13,011,641.03
  5. Step 5: Solve for x
    x = 13,011,641.03/3,955.20
  6. Step 6: Final answer
    x = 3,289.76

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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.