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Finding the Fourth Proportional to 3,970.80, 5,956.65 and 1,049.32

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Solution

The fourth proportional to 3,970.80, 5,956.65 and 1,049.32 is: 1,574.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.80 : 5,956.65 = 1,049.32 : x
  2. Step 2: Convert to fraction form
    3,970.80/5,956.65 = 1,049.32/x
  3. Step 3: Cross multiply
    3,970.80x = 5,956.65 × 1,049.32
  4. Step 4: Simplify right side
    3,970.80x = 6,250,431.98
  5. Step 5: Solve for x
    x = 6,250,431.98/3,970.80
  6. Step 6: Final answer
    x = 1,574.10

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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.