Home / 3,497.78-4,827.66-2,172.35

Finding the Fourth Proportional to 3,497.78, 4,827.66 and 2,172.35

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Solution

The fourth proportional to 3,497.78, 4,827.66 and 2,172.35 is: 2,998.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,497.78 : 4,827.66 = 2,172.35 : x
  2. Step 2: Convert to fraction form
    3,497.78/4,827.66 = 2,172.35/x
  3. Step 3: Cross multiply
    3,497.78x = 4,827.66 × 2,172.35
  4. Step 4: Simplify right side
    3,497.78x = 10,487,367.20
  5. Step 5: Solve for x
    x = 10,487,367.20/3,497.78
  6. Step 6: Final answer
    x = 2,998.29

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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.