Home / 3,015.12-4,522.69-1,981.67

Finding the Fourth Proportional to 3,015.12, 4,522.69 and 1,981.67

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Solution

The fourth proportional to 3,015.12, 4,522.69 and 1,981.67 is: 2,972.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.12 : 4,522.69 = 1,981.67 : x
  2. Step 2: Convert to fraction form
    3,015.12/4,522.69 = 1,981.67/x
  3. Step 3: Cross multiply
    3,015.12x = 4,522.69 × 1,981.67
  4. Step 4: Simplify right side
    3,015.12x = 8,962,447.81
  5. Step 5: Solve for x
    x = 8,962,447.81/3,015.12
  6. Step 6: Final answer
    x = 2,972.50

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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.