Home / 3,646.40-5,469.60-2,261.30

Finding the Fourth Proportional to 3,646.40, 5,469.60 and 2,261.30

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Solution

The fourth proportional to 3,646.40, 5,469.60 and 2,261.30 is: 3,391.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,646.40 : 5,469.60 = 2,261.30 : x
  2. Step 2: Convert to fraction form
    3,646.40/5,469.60 = 2,261.30/x
  3. Step 3: Cross multiply
    3,646.40x = 5,469.60 × 2,261.30
  4. Step 4: Simplify right side
    3,646.40x = 12,368,406.48
  5. Step 5: Solve for x
    x = 12,368,406.48/3,646.40
  6. Step 6: Final answer
    x = 3,391.95

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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.