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Finding the Fourth Proportional to 3,998.65, 5,998.04 and 1,533.61

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Solution

The fourth proportional to 3,998.65, 5,998.04 and 1,533.61 is: 2,300.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.65 : 5,998.04 = 1,533.61 : x
  2. Step 2: Convert to fraction form
    3,998.65/5,998.04 = 1,533.61/x
  3. Step 3: Cross multiply
    3,998.65x = 5,998.04 × 1,533.61
  4. Step 4: Simplify right side
    3,998.65x = 9,198,646.46
  5. Step 5: Solve for x
    x = 9,198,646.46/3,998.65
  6. Step 6: Final answer
    x = 2,300.44

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1.5x scale

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.