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Finding the Fourth Proportional to 3,983.04, 5,972.40 and 2,894.40

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Solution

The fourth proportional to 3,983.04, 5,972.40 and 2,894.40 is: 4,340.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.04 : 5,972.40 = 2,894.40 : x
  2. Step 2: Convert to fraction form
    3,983.04/5,972.40 = 2,894.40/x
  3. Step 3: Cross multiply
    3,983.04x = 5,972.40 × 2,894.40
  4. Step 4: Simplify right side
    3,983.04x = 17,286,514.56
  5. Step 5: Solve for x
    x = 17,286,514.56/3,983.04
  6. Step 6: Final answer
    x = 4,340.03

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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.