Home / 1,995.15-2,989.35-1,447.32

Finding the Fourth Proportional to 1,995.15, 2,989.35 and 1,447.32

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Solution

The fourth proportional to 1,995.15, 2,989.35 and 1,447.32 is: 2,168.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.15 : 2,989.35 = 1,447.32 : x
  2. Step 2: Convert to fraction form
    1,995.15/2,989.35 = 1,447.32/x
  3. Step 3: Cross multiply
    1,995.15x = 2,989.35 × 1,447.32
  4. Step 4: Simplify right side
    1,995.15x = 4,326,546.04
  5. Step 5: Solve for x
    x = 4,326,546.04/1,995.15
  6. Step 6: Final answer
    x = 2,168.53

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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.