Home / 3,328.60-4,995.78-1,380.76

Finding the Fourth Proportional to 3,328.60, 4,995.78 and 1,380.76

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Solution

The fourth proportional to 3,328.60, 4,995.78 and 1,380.76 is: 2,072.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,328.60 : 4,995.78 = 1,380.76 : x
  2. Step 2: Convert to fraction form
    3,328.60/4,995.78 = 1,380.76/x
  3. Step 3: Cross multiply
    3,328.60x = 4,995.78 × 1,380.76
  4. Step 4: Simplify right side
    3,328.60x = 6,897,973.19
  5. Step 5: Solve for x
    x = 6,897,973.19/3,328.60
  6. Step 6: Final answer
    x = 2,072.33

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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.