Home / 5,213.25-7,192.16-3,087.20

Finding the Fourth Proportional to 5,213.25, 7,192.16 and 3,087.20

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Solution

The fourth proportional to 5,213.25, 7,192.16 and 3,087.20 is: 4,259.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.25 : 7,192.16 = 3,087.20 : x
  2. Step 2: Convert to fraction form
    5,213.25/7,192.16 = 3,087.20/x
  3. Step 3: Cross multiply
    5,213.25x = 7,192.16 × 3,087.20
  4. Step 4: Simplify right side
    5,213.25x = 22,203,636.35
  5. Step 5: Solve for x
    x = 22,203,636.35/5,213.25
  6. Step 6: Final answer
    x = 4,259.08

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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.