Home / 3,174.12-4,376.16-2,177.60

Finding the Fourth Proportional to 3,174.12, 4,376.16 and 2,177.60

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Solution

The fourth proportional to 3,174.12, 4,376.16 and 2,177.60 is: 3,002.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.12 : 4,376.16 = 2,177.60 : x
  2. Step 2: Convert to fraction form
    3,174.12/4,376.16 = 2,177.60/x
  3. Step 3: Cross multiply
    3,174.12x = 4,376.16 × 2,177.60
  4. Step 4: Simplify right side
    3,174.12x = 9,529,504.14
  5. Step 5: Solve for x
    x = 9,529,504.14/3,174.12
  6. Step 6: Final answer
    x = 3,002.25

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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.