Home / 5,076.81-7,616.61-1,745.78

Finding the Fourth Proportional to 5,076.81, 7,616.61 and 1,745.78

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Solution

The fourth proportional to 5,076.81, 7,616.61 and 1,745.78 is: 2,619.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.81 : 7,616.61 = 1,745.78 : x
  2. Step 2: Convert to fraction form
    5,076.81/7,616.61 = 1,745.78/x
  3. Step 3: Cross multiply
    5,076.81x = 7,616.61 × 1,745.78
  4. Step 4: Simplify right side
    5,076.81x = 13,296,887.32
  5. Step 5: Solve for x
    x = 13,296,887.32/5,076.81
  6. Step 6: Final answer
    x = 2,619.14

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1.5x scale

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.