Home / 2,179.04-3,006.58-1,247

Finding the Fourth Proportional to 2,179.04, 3,006.58 and 1,247

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Solution

The fourth proportional to 2,179.04, 3,006.58 and 1,247 is: 1,720.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.04 : 3,006.58 = 1,247 : x
  2. Step 2: Convert to fraction form
    2,179.04/3,006.58 = 1,247/x
  3. Step 3: Cross multiply
    2,179.04x = 3,006.58 × 1,247
  4. Step 4: Simplify right side
    2,179.04x = 3,749,205.26
  5. Step 5: Solve for x
    x = 3,749,205.26/2,179.04
  6. Step 6: Final answer
    x = 1,720.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.