Home / 2,756.78-4,112.80-2,530.98

Finding the Fourth Proportional to 2,756.78, 4,112.80 and 2,530.98

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Solution

The fourth proportional to 2,756.78, 4,112.80 and 2,530.98 is: 3,775.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.78 : 4,112.80 = 2,530.98 : x
  2. Step 2: Convert to fraction form
    2,756.78/4,112.80 = 2,530.98/x
  3. Step 3: Cross multiply
    2,756.78x = 4,112.80 × 2,530.98
  4. Step 4: Simplify right side
    2,756.78x = 10,409,414.54
  5. Step 5: Solve for x
    x = 10,409,414.54/2,756.78
  6. Step 6: Final answer
    x = 3,775.93

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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.