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Finding the Fourth Proportional to 2,917.03, 4,373.93 and 1,993.63

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Solution

The fourth proportional to 2,917.03, 4,373.93 and 1,993.63 is: 2,989.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.03 : 4,373.93 = 1,993.63 : x
  2. Step 2: Convert to fraction form
    2,917.03/4,373.93 = 1,993.63/x
  3. Step 3: Cross multiply
    2,917.03x = 4,373.93 × 1,993.63
  4. Step 4: Simplify right side
    2,917.03x = 8,719,998.07
  5. Step 5: Solve for x
    x = 8,719,998.07/2,917.03
  6. Step 6: Final answer
    x = 2,989.34

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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.