Home / 5,177.09-7,144.58-2,939.06

Finding the Fourth Proportional to 5,177.09, 7,144.58 and 2,939.06

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Solution

The fourth proportional to 5,177.09, 7,144.58 and 2,939.06 is: 4,056.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.09 : 7,144.58 = 2,939.06 : x
  2. Step 2: Convert to fraction form
    5,177.09/7,144.58 = 2,939.06/x
  3. Step 3: Cross multiply
    5,177.09x = 7,144.58 × 2,939.06
  4. Step 4: Simplify right side
    5,177.09x = 20,998,349.29
  5. Step 5: Solve for x
    x = 20,998,349.29/5,177.09
  6. Step 6: Final answer
    x = 4,056.01

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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.