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Finding the Fourth Proportional to 3,652.99, 5,479.50 and 1,188.02

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Solution

The fourth proportional to 3,652.99, 5,479.50 and 1,188.02 is: 1,782.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,652.99 : 5,479.50 = 1,188.02 : x
  2. Step 2: Convert to fraction form
    3,652.99/5,479.50 = 1,188.02/x
  3. Step 3: Cross multiply
    3,652.99x = 5,479.50 × 1,188.02
  4. Step 4: Simplify right side
    3,652.99x = 6,509,755.59
  5. Step 5: Solve for x
    x = 6,509,755.59/3,652.99
  6. Step 6: Final answer
    x = 1,782.03

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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.