Home / 3,605.21-4,974.80-2,112.83

Finding the Fourth Proportional to 3,605.21, 4,974.80 and 2,112.83

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Solution

The fourth proportional to 3,605.21, 4,974.80 and 2,112.83 is: 2,915.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.21 : 4,974.80 = 2,112.83 : x
  2. Step 2: Convert to fraction form
    3,605.21/4,974.80 = 2,112.83/x
  3. Step 3: Cross multiply
    3,605.21x = 4,974.80 × 2,112.83
  4. Step 4: Simplify right side
    3,605.21x = 10,510,871.25
  5. Step 5: Solve for x
    x = 10,510,871.25/3,605.21
  6. Step 6: Final answer
    x = 2,915.47

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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.