Home / 3,159.64-4,741.62-1,621.72

Finding the Fourth Proportional to 3,159.64, 4,741.62 and 1,621.72

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Solution

The fourth proportional to 3,159.64, 4,741.62 and 1,621.72 is: 2,433.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.64 : 4,741.62 = 1,621.72 : x
  2. Step 2: Convert to fraction form
    3,159.64/4,741.62 = 1,621.72/x
  3. Step 3: Cross multiply
    3,159.64x = 4,741.62 × 1,621.72
  4. Step 4: Simplify right side
    3,159.64x = 7,689,579.99
  5. Step 5: Solve for x
    x = 7,689,579.99/3,159.64
  6. Step 6: Final answer
    x = 2,433.69

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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.