Home / 3,845.70-5,307.18-2,167.44

Finding the Fourth Proportional to 3,845.70, 5,307.18 and 2,167.44

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Solution

The fourth proportional to 3,845.70, 5,307.18 and 2,167.44 is: 2,991.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.70 : 5,307.18 = 2,167.44 : x
  2. Step 2: Convert to fraction form
    3,845.70/5,307.18 = 2,167.44/x
  3. Step 3: Cross multiply
    3,845.70x = 5,307.18 × 2,167.44
  4. Step 4: Simplify right side
    3,845.70x = 11,502,994.22
  5. Step 5: Solve for x
    x = 11,502,994.22/3,845.70
  6. Step 6: Final answer
    x = 2,991.13

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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.