Home / 5,276.69-7,280.60-3,151.81

Finding the Fourth Proportional to 5,276.69, 7,280.60 and 3,151.81

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Solution

The fourth proportional to 5,276.69, 7,280.60 and 3,151.81 is: 4,348.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.69 : 7,280.60 = 3,151.81 : x
  2. Step 2: Convert to fraction form
    5,276.69/7,280.60 = 3,151.81/x
  3. Step 3: Cross multiply
    5,276.69x = 7,280.60 × 3,151.81
  4. Step 4: Simplify right side
    5,276.69x = 22,947,067.89
  5. Step 5: Solve for x
    x = 22,947,067.89/5,276.69
  6. Step 6: Final answer
    x = 4,348.76

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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.