Home / 3,497.64-4,827.24-2,172.78

Finding the Fourth Proportional to 3,497.64, 4,827.24 and 2,172.78

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Solution

The fourth proportional to 3,497.64, 4,827.24 and 2,172.78 is: 2,998.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,497.64 : 4,827.24 = 2,172.78 : x
  2. Step 2: Convert to fraction form
    3,497.64/4,827.24 = 2,172.78/x
  3. Step 3: Cross multiply
    3,497.64x = 4,827.24 × 2,172.78
  4. Step 4: Simplify right side
    3,497.64x = 10,488,530.53
  5. Step 5: Solve for x
    x = 10,488,530.53/3,497.64
  6. Step 6: Final answer
    x = 2,998.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.