Home / 2,999.49-4,491.38-2,117.21

Finding the Fourth Proportional to 2,999.49, 4,491.38 and 2,117.21

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Solution

The fourth proportional to 2,999.49, 4,491.38 and 2,117.21 is: 3,170.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.49 : 4,491.38 = 2,117.21 : x
  2. Step 2: Convert to fraction form
    2,999.49/4,491.38 = 2,117.21/x
  3. Step 3: Cross multiply
    2,999.49x = 4,491.38 × 2,117.21
  4. Step 4: Simplify right side
    2,999.49x = 9,509,210.92
  5. Step 5: Solve for x
    x = 9,509,210.92/2,999.49
  6. Step 6: Final answer
    x = 3,170.27

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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.