Home / 5,177.21-7,728.28-4,791.79

Finding the Fourth Proportional to 5,177.21, 7,728.28 and 4,791.79

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Solution

The fourth proportional to 5,177.21, 7,728.28 and 4,791.79 is: 7,152.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.21 : 7,728.28 = 4,791.79 : x
  2. Step 2: Convert to fraction form
    5,177.21/7,728.28 = 4,791.79/x
  3. Step 3: Cross multiply
    5,177.21x = 7,728.28 × 4,791.79
  4. Step 4: Simplify right side
    5,177.21x = 37,032,256.18
  5. Step 5: Solve for x
    x = 37,032,256.18/5,177.21
  6. Step 6: Final answer
    x = 7,152.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.