Home / 3,845.46-5,307.22-2,167.28

Finding the Fourth Proportional to 3,845.46, 5,307.22 and 2,167.28

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Solution

The fourth proportional to 3,845.46, 5,307.22 and 2,167.28 is: 2,991.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.46 : 5,307.22 = 2,167.28 : x
  2. Step 2: Convert to fraction form
    3,845.46/5,307.22 = 2,167.28/x
  3. Step 3: Cross multiply
    3,845.46x = 5,307.22 × 2,167.28
  4. Step 4: Simplify right side
    3,845.46x = 11,502,223.91
  5. Step 5: Solve for x
    x = 11,502,223.91/3,845.46
  6. Step 6: Final answer
    x = 2,991.12

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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.