Home / 3,172.39-4,758.56-2,479.64

Finding the Fourth Proportional to 3,172.39, 4,758.56 and 2,479.64

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Solution

The fourth proportional to 3,172.39, 4,758.56 and 2,479.64 is: 3,719.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.39 : 4,758.56 = 2,479.64 : x
  2. Step 2: Convert to fraction form
    3,172.39/4,758.56 = 2,479.64/x
  3. Step 3: Cross multiply
    3,172.39x = 4,758.56 × 2,479.64
  4. Step 4: Simplify right side
    3,172.39x = 11,799,533.81
  5. Step 5: Solve for x
    x = 11,799,533.81/3,172.39
  6. Step 6: Final answer
    x = 3,719.44

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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.