Home / 2,900.22-4,355.82-1,812.22

Finding the Fourth Proportional to 2,900.22, 4,355.82 and 1,812.22

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Solution

The fourth proportional to 2,900.22, 4,355.82 and 1,812.22 is: 2,721.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.22 : 4,355.82 = 1,812.22 : x
  2. Step 2: Convert to fraction form
    2,900.22/4,355.82 = 1,812.22/x
  3. Step 3: Cross multiply
    2,900.22x = 4,355.82 × 1,812.22
  4. Step 4: Simplify right side
    2,900.22x = 7,893,704.12
  5. Step 5: Solve for x
    x = 7,893,704.12/2,900.22
  6. Step 6: Final answer
    x = 2,721.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.