Home / 7,351.68-10,145.12-3,994.34

Finding the Fourth Proportional to 7,351.68, 10,145.12 and 3,994.34

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Solution

The fourth proportional to 7,351.68, 10,145.12 and 3,994.34 is: 5,512.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.68 : 10,145.12 = 3,994.34 : x
  2. Step 2: Convert to fraction form
    7,351.68/10,145.12 = 3,994.34/x
  3. Step 3: Cross multiply
    7,351.68x = 10,145.12 × 3,994.34
  4. Step 4: Simplify right side
    7,351.68x = 40,523,058.62
  5. Step 5: Solve for x
    x = 40,523,058.62/7,351.68
  6. Step 6: Final answer
    x = 5,512.08

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Half scale
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Double scale
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Similar ratio
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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.