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Finding the Fourth Proportional to 3,993.66, 5,990.18 and 1,653.06

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Solution

The fourth proportional to 3,993.66, 5,990.18 and 1,653.06 is: 2,479.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.66 : 5,990.18 = 1,653.06 : x
  2. Step 2: Convert to fraction form
    3,993.66/5,990.18 = 1,653.06/x
  3. Step 3: Cross multiply
    3,993.66x = 5,990.18 × 1,653.06
  4. Step 4: Simplify right side
    3,993.66x = 9,902,126.95
  5. Step 5: Solve for x
    x = 9,902,126.95/3,993.66
  6. Step 6: Final answer
    x = 2,479.46

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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.