Home / 3,616.77-4,989.56-2,775.99

Finding the Fourth Proportional to 3,616.77, 4,989.56 and 2,775.99

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Solution

The fourth proportional to 3,616.77, 4,989.56 and 2,775.99 is: 3,829.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.77 : 4,989.56 = 2,775.99 : x
  2. Step 2: Convert to fraction form
    3,616.77/4,989.56 = 2,775.99/x
  3. Step 3: Cross multiply
    3,616.77x = 4,989.56 × 2,775.99
  4. Step 4: Simplify right side
    3,616.77x = 13,850,954.78
  5. Step 5: Solve for x
    x = 13,850,954.78/3,616.77
  6. Step 6: Final answer
    x = 3,829.65

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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.