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Finding the Fourth Proportional to 3,689.70, 5,521.54 and 2,303.68

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Solution

The fourth proportional to 3,689.70, 5,521.54 and 2,303.68 is: 3,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.70 : 5,521.54 = 2,303.68 : x
  2. Step 2: Convert to fraction form
    3,689.70/5,521.54 = 2,303.68/x
  3. Step 3: Cross multiply
    3,689.70x = 5,521.54 × 2,303.68
  4. Step 4: Simplify right side
    3,689.70x = 12,719,861.27
  5. Step 5: Solve for x
    x = 12,719,861.27/3,689.70
  6. Step 6: Final answer
    x = 3,447.40

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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.