Home / 3,156.98-4,354.38-2,736.60

Finding the Fourth Proportional to 3,156.98, 4,354.38 and 2,736.60

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Solution

The fourth proportional to 3,156.98, 4,354.38 and 2,736.60 is: 3,774.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.98 : 4,354.38 = 2,736.60 : x
  2. Step 2: Convert to fraction form
    3,156.98/4,354.38 = 2,736.60/x
  3. Step 3: Cross multiply
    3,156.98x = 4,354.38 × 2,736.60
  4. Step 4: Simplify right side
    3,156.98x = 11,916,196.31
  5. Step 5: Solve for x
    x = 11,916,196.31/3,156.98
  6. Step 6: Final answer
    x = 3,774.56

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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.