Home / 3,616.10-4,989.93-2,123.90

Finding the Fourth Proportional to 3,616.10, 4,989.93 and 2,123.90

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Solution

The fourth proportional to 3,616.10, 4,989.93 and 2,123.90 is: 2,930.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.10 : 4,989.93 = 2,123.90 : x
  2. Step 2: Convert to fraction form
    3,616.10/4,989.93 = 2,123.90/x
  3. Step 3: Cross multiply
    3,616.10x = 4,989.93 × 2,123.90
  4. Step 4: Simplify right side
    3,616.10x = 10,598,112.33
  5. Step 5: Solve for x
    x = 10,598,112.33/3,616.10
  6. Step 6: Final answer
    x = 2,930.81

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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.