Home / 5,133.47-7,083.06-3,939.80

Finding the Fourth Proportional to 5,133.47, 7,083.06 and 3,939.80

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Solution

The fourth proportional to 5,133.47, 7,083.06 and 3,939.80 is: 5,436.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.47 : 7,083.06 = 3,939.80 : x
  2. Step 2: Convert to fraction form
    5,133.47/7,083.06 = 3,939.80/x
  3. Step 3: Cross multiply
    5,133.47x = 7,083.06 × 3,939.80
  4. Step 4: Simplify right side
    5,133.47x = 27,905,839.79
  5. Step 5: Solve for x
    x = 27,905,839.79/5,133.47
  6. Step 6: Final answer
    x = 5,436.06

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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.