Home / 2,722.21-3,755.26-1,603.09

Finding the Fourth Proportional to 2,722.21, 3,755.26 and 1,603.09

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Solution

The fourth proportional to 2,722.21, 3,755.26 and 1,603.09 is: 2,211.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.21 : 3,755.26 = 1,603.09 : x
  2. Step 2: Convert to fraction form
    2,722.21/3,755.26 = 1,603.09/x
  3. Step 3: Cross multiply
    2,722.21x = 3,755.26 × 1,603.09
  4. Step 4: Simplify right side
    2,722.21x = 6,020,026.45
  5. Step 5: Solve for x
    x = 6,020,026.45/2,722.21
  6. Step 6: Final answer
    x = 2,211.45

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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.