Home / 3,145.81-4,718.44-1,479.54

Finding the Fourth Proportional to 3,145.81, 4,718.44 and 1,479.54

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Solution

The fourth proportional to 3,145.81, 4,718.44 and 1,479.54 is: 2,219.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.81 : 4,718.44 = 1,479.54 : x
  2. Step 2: Convert to fraction form
    3,145.81/4,718.44 = 1,479.54/x
  3. Step 3: Cross multiply
    3,145.81x = 4,718.44 × 1,479.54
  4. Step 4: Simplify right side
    3,145.81x = 6,981,126.90
  5. Step 5: Solve for x
    x = 6,981,126.90/3,145.81
  6. Step 6: Final answer
    x = 2,219.18

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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.