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Finding the Fourth Proportional to 7,351.46, 10,145.02 and 3,994.28

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Solution

The fourth proportional to 7,351.46, 10,145.02 and 3,994.28 is: 5,512.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.46 : 10,145.02 = 3,994.28 : x
  2. Step 2: Convert to fraction form
    7,351.46/10,145.02 = 3,994.28/x
  3. Step 3: Cross multiply
    7,351.46x = 10,145.02 × 3,994.28
  4. Step 4: Simplify right side
    7,351.46x = 40,522,050.49
  5. Step 5: Solve for x
    x = 40,522,050.49/7,351.46
  6. Step 6: Final answer
    x = 5,512.11

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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.