Home / 3,388.40-4,665.61-2,966.39

Finding the Fourth Proportional to 3,388.40, 4,665.61 and 2,966.39

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Solution

The fourth proportional to 3,388.40, 4,665.61 and 2,966.39 is: 4,084.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.40 : 4,665.61 = 2,966.39 : x
  2. Step 2: Convert to fraction form
    3,388.40/4,665.61 = 2,966.39/x
  3. Step 3: Cross multiply
    3,388.40x = 4,665.61 × 2,966.39
  4. Step 4: Simplify right side
    3,388.40x = 13,840,023.10
  5. Step 5: Solve for x
    x = 13,840,023.10/3,388.40
  6. Step 6: Final answer
    x = 4,084.53

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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.