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Finding the Fourth Proportional to 5,990.38, 8,986.12 and 1,607.81

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Solution

The fourth proportional to 5,990.38, 8,986.12 and 1,607.81 is: 2,411.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,990.38 : 8,986.12 = 1,607.81 : x
  2. Step 2: Convert to fraction form
    5,990.38/8,986.12 = 1,607.81/x
  3. Step 3: Cross multiply
    5,990.38x = 8,986.12 × 1,607.81
  4. Step 4: Simplify right side
    5,990.38x = 14,447,972.18
  5. Step 5: Solve for x
    x = 14,447,972.18/5,990.38
  6. Step 6: Final answer
    x = 2,411.86

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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.