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Finding the Fourth Proportional to 3,967.88, 5,949.74 and 1,370.20

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Solution

The fourth proportional to 3,967.88, 5,949.74 and 1,370.20 is: 2,054.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.88 : 5,949.74 = 1,370.20 : x
  2. Step 2: Convert to fraction form
    3,967.88/5,949.74 = 1,370.20/x
  3. Step 3: Cross multiply
    3,967.88x = 5,949.74 × 1,370.20
  4. Step 4: Simplify right side
    3,967.88x = 8,152,333.75
  5. Step 5: Solve for x
    x = 8,152,333.75/3,967.88
  6. Step 6: Final answer
    x = 2,054.58

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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.