Home / 4,905.78-6,771.52-3,137.39

Finding the Fourth Proportional to 4,905.78, 6,771.52 and 3,137.39

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Solution

The fourth proportional to 4,905.78, 6,771.52 and 3,137.39 is: 4,330.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.78 : 6,771.52 = 3,137.39 : x
  2. Step 2: Convert to fraction form
    4,905.78/6,771.52 = 3,137.39/x
  3. Step 3: Cross multiply
    4,905.78x = 6,771.52 × 3,137.39
  4. Step 4: Simplify right side
    4,905.78x = 21,244,899.13
  5. Step 5: Solve for x
    x = 21,244,899.13/4,905.78
  6. Step 6: Final answer
    x = 4,330.59

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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.