Home / 2,199.68-3,298.56-1,172.48

Finding the Fourth Proportional to 2,199.68, 3,298.56 and 1,172.48

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Solution

The fourth proportional to 2,199.68, 3,298.56 and 1,172.48 is: 1,758.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.68 : 3,298.56 = 1,172.48 : x
  2. Step 2: Convert to fraction form
    2,199.68/3,298.56 = 1,172.48/x
  3. Step 3: Cross multiply
    2,199.68x = 3,298.56 × 1,172.48
  4. Step 4: Simplify right side
    2,199.68x = 3,867,495.63
  5. Step 5: Solve for x
    x = 3,867,495.63/2,199.68
  6. Step 6: Final answer
    x = 1,758.21

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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.