Home / 2,447.03-3,376.90-1,399.12

Finding the Fourth Proportional to 2,447.03, 3,376.90 and 1,399.12

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Solution

The fourth proportional to 2,447.03, 3,376.90 and 1,399.12 is: 1,930.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.03 : 3,376.90 = 1,399.12 : x
  2. Step 2: Convert to fraction form
    2,447.03/3,376.90 = 1,399.12/x
  3. Step 3: Cross multiply
    2,447.03x = 3,376.90 × 1,399.12
  4. Step 4: Simplify right side
    2,447.03x = 4,724,688.33
  5. Step 5: Solve for x
    x = 4,724,688.33/2,447.03
  6. Step 6: Final answer
    x = 1,930.78

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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.