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Finding the Fourth Proportional to 3,995.90, 5,995.70 and 1,529.90

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Solution

The fourth proportional to 3,995.90, 5,995.70 and 1,529.90 is: 2,295.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.90 : 5,995.70 = 1,529.90 : x
  2. Step 2: Convert to fraction form
    3,995.90/5,995.70 = 1,529.90/x
  3. Step 3: Cross multiply
    3,995.90x = 5,995.70 × 1,529.90
  4. Step 4: Simplify right side
    3,995.90x = 9,172,821.43
  5. Step 5: Solve for x
    x = 9,172,821.43/3,995.90
  6. Step 6: Final answer
    x = 2,295.56

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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.