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Finding the Fourth Proportional to 3,612.71, 5,419.07 and 1,015.67

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Solution

The fourth proportional to 3,612.71, 5,419.07 and 1,015.67 is: 1,523.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.71 : 5,419.07 = 1,015.67 : x
  2. Step 2: Convert to fraction form
    3,612.71/5,419.07 = 1,015.67/x
  3. Step 3: Cross multiply
    3,612.71x = 5,419.07 × 1,015.67
  4. Step 4: Simplify right side
    3,612.71x = 5,503,981.75
  5. Step 5: Solve for x
    x = 5,503,981.75/3,612.71
  6. Step 6: Final answer
    x = 1,523.51

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.