Home / 3,621.64-5,432.44-1,157.20

Finding the Fourth Proportional to 3,621.64, 5,432.44 and 1,157.20

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Solution

The fourth proportional to 3,621.64, 5,432.44 and 1,157.20 is: 1,735.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.64 : 5,432.44 = 1,157.20 : x
  2. Step 2: Convert to fraction form
    3,621.64/5,432.44 = 1,157.20/x
  3. Step 3: Cross multiply
    3,621.64x = 5,432.44 × 1,157.20
  4. Step 4: Simplify right side
    3,621.64x = 6,286,419.57
  5. Step 5: Solve for x
    x = 6,286,419.57/3,621.64
  6. Step 6: Final answer
    x = 1,735.79

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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.