Home / 2,400.80-3,313.44-1,353.12

Finding the Fourth Proportional to 2,400.80, 3,313.44 and 1,353.12

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Solution

The fourth proportional to 2,400.80, 3,313.44 and 1,353.12 is: 1,867.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.80 : 3,313.44 = 1,353.12 : x
  2. Step 2: Convert to fraction form
    2,400.80/3,313.44 = 1,353.12/x
  3. Step 3: Cross multiply
    2,400.80x = 3,313.44 × 1,353.12
  4. Step 4: Simplify right side
    2,400.80x = 4,483,481.93
  5. Step 5: Solve for x
    x = 4,483,481.93/2,400.80
  6. Step 6: Final answer
    x = 1,867.49

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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.