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Finding the Fourth Proportional to 3,740.66, 5,611.08 and 1,790.72

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Solution

The fourth proportional to 3,740.66, 5,611.08 and 1,790.72 is: 2,686.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.66 : 5,611.08 = 1,790.72 : x
  2. Step 2: Convert to fraction form
    3,740.66/5,611.08 = 1,790.72/x
  3. Step 3: Cross multiply
    3,740.66x = 5,611.08 × 1,790.72
  4. Step 4: Simplify right side
    3,740.66x = 10,047,873.18
  5. Step 5: Solve for x
    x = 10,047,873.18/3,740.66
  6. Step 6: Final answer
    x = 2,686.12

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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.