Home / 5,122.39-7,686.42-4,750.60

Finding the Fourth Proportional to 5,122.39, 7,686.42 and 4,750.60

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Solution

The fourth proportional to 5,122.39, 7,686.42 and 4,750.60 is: 7,128.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.39 : 7,686.42 = 4,750.60 : x
  2. Step 2: Convert to fraction form
    5,122.39/7,686.42 = 4,750.60/x
  3. Step 3: Cross multiply
    5,122.39x = 7,686.42 × 4,750.60
  4. Step 4: Simplify right side
    5,122.39x = 36,515,106.85
  5. Step 5: Solve for x
    x = 36,515,106.85/5,122.39
  6. Step 6: Final answer
    x = 7,128.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.