Home / 3,490.33-4,815.03-2,163.55

Finding the Fourth Proportional to 3,490.33, 4,815.03 and 2,163.55

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Solution

The fourth proportional to 3,490.33, 4,815.03 and 2,163.55 is: 2,984.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.33 : 4,815.03 = 2,163.55 : x
  2. Step 2: Convert to fraction form
    3,490.33/4,815.03 = 2,163.55/x
  3. Step 3: Cross multiply
    3,490.33x = 4,815.03 × 2,163.55
  4. Step 4: Simplify right side
    3,490.33x = 10,417,558.16
  5. Step 5: Solve for x
    x = 10,417,558.16/3,490.33
  6. Step 6: Final answer
    x = 2,984.69

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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.