Home / 3,621.39-5,431.64-1,156.47

Finding the Fourth Proportional to 3,621.39, 5,431.64 and 1,156.47

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Solution

The fourth proportional to 3,621.39, 5,431.64 and 1,156.47 is: 1,734.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.39 : 5,431.64 = 1,156.47 : x
  2. Step 2: Convert to fraction form
    3,621.39/5,431.64 = 1,156.47/x
  3. Step 3: Cross multiply
    3,621.39x = 5,431.64 × 1,156.47
  4. Step 4: Simplify right side
    3,621.39x = 6,281,522.93
  5. Step 5: Solve for x
    x = 6,281,522.93/3,621.39
  6. Step 6: Final answer
    x = 1,734.56

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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.