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Finding the Fourth Proportional to 2,423.88, 3,639.90 and 1,330.32

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Solution

The fourth proportional to 2,423.88, 3,639.90 and 1,330.32 is: 1,997.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.88 : 3,639.90 = 1,330.32 : x
  2. Step 2: Convert to fraction form
    2,423.88/3,639.90 = 1,330.32/x
  3. Step 3: Cross multiply
    2,423.88x = 3,639.90 × 1,330.32
  4. Step 4: Simplify right side
    2,423.88x = 4,842,231.77
  5. Step 5: Solve for x
    x = 4,842,231.77/2,423.88
  6. Step 6: Final answer
    x = 1,997.72

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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.