Home / 3,446.21-4,755.48-2,187.47

Finding the Fourth Proportional to 3,446.21, 4,755.48 and 2,187.47

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Solution

The fourth proportional to 3,446.21, 4,755.48 and 2,187.47 is: 3,018.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,446.21 : 4,755.48 = 2,187.47 : x
  2. Step 2: Convert to fraction form
    3,446.21/4,755.48 = 2,187.47/x
  3. Step 3: Cross multiply
    3,446.21x = 4,755.48 × 2,187.47
  4. Step 4: Simplify right side
    3,446.21x = 10,402,469.84
  5. Step 5: Solve for x
    x = 10,402,469.84/3,446.21
  6. Step 6: Final answer
    x = 3,018.52

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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.