Home / 3,165.68-4,368.84-2,172.27

Finding the Fourth Proportional to 3,165.68, 4,368.84 and 2,172.27

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Solution

The fourth proportional to 3,165.68, 4,368.84 and 2,172.27 is: 2,997.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.68 : 4,368.84 = 2,172.27 : x
  2. Step 2: Convert to fraction form
    3,165.68/4,368.84 = 2,172.27/x
  3. Step 3: Cross multiply
    3,165.68x = 4,368.84 × 2,172.27
  4. Step 4: Simplify right side
    3,165.68x = 9,490,283.73
  5. Step 5: Solve for x
    x = 9,490,283.73/3,165.68
  6. Step 6: Final answer
    x = 2,997.86

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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.