Home / 3,403.07-5,102.19-1,321.32

Finding the Fourth Proportional to 3,403.07, 5,102.19 and 1,321.32

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Solution

The fourth proportional to 3,403.07, 5,102.19 and 1,321.32 is: 1,981.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.07 : 5,102.19 = 1,321.32 : x
  2. Step 2: Convert to fraction form
    3,403.07/5,102.19 = 1,321.32/x
  3. Step 3: Cross multiply
    3,403.07x = 5,102.19 × 1,321.32
  4. Step 4: Simplify right side
    3,403.07x = 6,741,637.02
  5. Step 5: Solve for x
    x = 6,741,637.02/3,403.07
  6. Step 6: Final answer
    x = 1,981.04

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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.