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Finding the Fourth Proportional to 3,322.68, 4,981.68 and 2,990.52

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Solution

The fourth proportional to 3,322.68, 4,981.68 and 2,990.52 is: 4,483.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,322.68 : 4,981.68 = 2,990.52 : x
  2. Step 2: Convert to fraction form
    3,322.68/4,981.68 = 2,990.52/x
  3. Step 3: Cross multiply
    3,322.68x = 4,981.68 × 2,990.52
  4. Step 4: Simplify right side
    3,322.68x = 14,897,813.67
  5. Step 5: Solve for x
    x = 14,897,813.67/3,322.68
  6. Step 6: Final answer
    x = 4,483.67

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.