Home / 3,651.11-5,036.77-2,391.60

Finding the Fourth Proportional to 3,651.11, 5,036.77 and 2,391.60

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Solution

The fourth proportional to 3,651.11, 5,036.77 and 2,391.60 is: 3,299.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.11 : 5,036.77 = 2,391.60 : x
  2. Step 2: Convert to fraction form
    3,651.11/5,036.77 = 2,391.60/x
  3. Step 3: Cross multiply
    3,651.11x = 5,036.77 × 2,391.60
  4. Step 4: Simplify right side
    3,651.11x = 12,045,939.13
  5. Step 5: Solve for x
    x = 12,045,939.13/3,651.11
  6. Step 6: Final answer
    x = 3,299.25

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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.