Home / 2,940.81-4,411.31-1,479.17

Finding the Fourth Proportional to 2,940.81, 4,411.31 and 1,479.17

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Solution

The fourth proportional to 2,940.81, 4,411.31 and 1,479.17 is: 2,218.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.81 : 4,411.31 = 1,479.17 : x
  2. Step 2: Convert to fraction form
    2,940.81/4,411.31 = 1,479.17/x
  3. Step 3: Cross multiply
    2,940.81x = 4,411.31 × 1,479.17
  4. Step 4: Simplify right side
    2,940.81x = 6,525,047.96
  5. Step 5: Solve for x
    x = 6,525,047.96/2,940.81
  6. Step 6: Final answer
    x = 2,218.79

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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.