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Finding the Fourth Proportional to 7,002.95, 9,664.20 and 3,859.13

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Solution

The fourth proportional to 7,002.95, 9,664.20 and 3,859.13 is: 5,325.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,002.95 : 9,664.20 = 3,859.13 : x
  2. Step 2: Convert to fraction form
    7,002.95/9,664.20 = 3,859.13/x
  3. Step 3: Cross multiply
    7,002.95x = 9,664.20 × 3,859.13
  4. Step 4: Simplify right side
    7,002.95x = 37,295,355.83
  5. Step 5: Solve for x
    x = 37,295,355.83/7,002.95
  6. Step 6: Final answer
    x = 5,325.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.