Home / 2,170.15-2,999.74-1,997.93

Finding the Fourth Proportional to 2,170.15, 2,999.74 and 1,997.93

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Solution

The fourth proportional to 2,170.15, 2,999.74 and 1,997.93 is: 2,761.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.15 : 2,999.74 = 1,997.93 : x
  2. Step 2: Convert to fraction form
    2,170.15/2,999.74 = 1,997.93/x
  3. Step 3: Cross multiply
    2,170.15x = 2,999.74 × 1,997.93
  4. Step 4: Simplify right side
    2,170.15x = 5,993,270.54
  5. Step 5: Solve for x
    x = 5,993,270.54/2,170.15
  6. Step 6: Final answer
    x = 2,761.68

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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.