Home / 6,131.36-8,458.40-3,772.64

Finding the Fourth Proportional to 6,131.36, 8,458.40 and 3,772.64

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Solution

The fourth proportional to 6,131.36, 8,458.40 and 3,772.64 is: 5,204.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,131.36 : 8,458.40 = 3,772.64 : x
  2. Step 2: Convert to fraction form
    6,131.36/8,458.40 = 3,772.64/x
  3. Step 3: Cross multiply
    6,131.36x = 8,458.40 × 3,772.64
  4. Step 4: Simplify right side
    6,131.36x = 31,910,498.18
  5. Step 5: Solve for x
    x = 31,910,498.18/6,131.36
  6. Step 6: Final answer
    x = 5,204.47

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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.