Home / 5,731.12-7,908.56-3,212.64

Finding the Fourth Proportional to 5,731.12, 7,908.56 and 3,212.64

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Solution

The fourth proportional to 5,731.12, 7,908.56 and 3,212.64 is: 4,433.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,731.12 : 7,908.56 = 3,212.64 : x
  2. Step 2: Convert to fraction form
    5,731.12/7,908.56 = 3,212.64/x
  3. Step 3: Cross multiply
    5,731.12x = 7,908.56 × 3,212.64
  4. Step 4: Simplify right side
    5,731.12x = 25,407,356.20
  5. Step 5: Solve for x
    x = 25,407,356.20/5,731.12
  6. Step 6: Final answer
    x = 4,433.23

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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.