Home / 2,173.90-2,999.99-1,179.19

Finding the Fourth Proportional to 2,173.90, 2,999.99 and 1,179.19

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Solution

The fourth proportional to 2,173.90, 2,999.99 and 1,179.19 is: 1,627.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.90 : 2,999.99 = 1,179.19 : x
  2. Step 2: Convert to fraction form
    2,173.90/2,999.99 = 1,179.19/x
  3. Step 3: Cross multiply
    2,173.90x = 2,999.99 × 1,179.19
  4. Step 4: Simplify right side
    2,173.90x = 3,537,537.31
  5. Step 5: Solve for x
    x = 3,537,537.31/2,173.90
  6. Step 6: Final answer
    x = 1,627.28

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1.5x scale

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.