Home / 3,736.89-5,156.87-2,165.13

Finding the Fourth Proportional to 3,736.89, 5,156.87 and 2,165.13

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Solution

The fourth proportional to 3,736.89, 5,156.87 and 2,165.13 is: 2,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,736.89 : 5,156.87 = 2,165.13 : x
  2. Step 2: Convert to fraction form
    3,736.89/5,156.87 = 2,165.13/x
  3. Step 3: Cross multiply
    3,736.89x = 5,156.87 × 2,165.13
  4. Step 4: Simplify right side
    3,736.89x = 11,165,283.12
  5. Step 5: Solve for x
    x = 11,165,283.12/3,736.89
  6. Step 6: Final answer
    x = 2,987.85

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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.