Home / 5,288.78-7,297.92-2,930.48

Finding the Fourth Proportional to 5,288.78, 7,297.92 and 2,930.48

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Solution

The fourth proportional to 5,288.78, 7,297.92 and 2,930.48 is: 4,043.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288.78 : 7,297.92 = 2,930.48 : x
  2. Step 2: Convert to fraction form
    5,288.78/7,297.92 = 2,930.48/x
  3. Step 3: Cross multiply
    5,288.78x = 7,297.92 × 2,930.48
  4. Step 4: Simplify right side
    5,288.78x = 21,386,408.60
  5. Step 5: Solve for x
    x = 21,386,408.60/5,288.78
  6. Step 6: Final answer
    x = 4,043.73

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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.