Home / 3,479.46-5,219.19-1,172.58

Finding the Fourth Proportional to 3,479.46, 5,219.19 and 1,172.58

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Solution

The fourth proportional to 3,479.46, 5,219.19 and 1,172.58 is: 1,758.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.46 : 5,219.19 = 1,172.58 : x
  2. Step 2: Convert to fraction form
    3,479.46/5,219.19 = 1,172.58/x
  3. Step 3: Cross multiply
    3,479.46x = 5,219.19 × 1,172.58
  4. Step 4: Simplify right side
    3,479.46x = 6,119,917.81
  5. Step 5: Solve for x
    x = 6,119,917.81/3,479.46
  6. Step 6: Final answer
    x = 1,758.87

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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.