Home / 3,458.64-4,771.44-2,309.20

Finding the Fourth Proportional to 3,458.64, 4,771.44 and 2,309.20

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Solution

The fourth proportional to 3,458.64, 4,771.44 and 2,309.20 is: 3,185.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.64 : 4,771.44 = 2,309.20 : x
  2. Step 2: Convert to fraction form
    3,458.64/4,771.44 = 2,309.20/x
  3. Step 3: Cross multiply
    3,458.64x = 4,771.44 × 2,309.20
  4. Step 4: Simplify right side
    3,458.64x = 11,018,209.25
  5. Step 5: Solve for x
    x = 11,018,209.25/3,458.64
  6. Step 6: Final answer
    x = 3,185.71

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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.