Home / 2,215.63-3,321.08-1,174.98

Finding the Fourth Proportional to 2,215.63, 3,321.08 and 1,174.98

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Solution

The fourth proportional to 2,215.63, 3,321.08 and 1,174.98 is: 1,761.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.63 : 3,321.08 = 1,174.98 : x
  2. Step 2: Convert to fraction form
    2,215.63/3,321.08 = 1,174.98/x
  3. Step 3: Cross multiply
    2,215.63x = 3,321.08 × 1,174.98
  4. Step 4: Simplify right side
    2,215.63x = 3,902,202.58
  5. Step 5: Solve for x
    x = 3,902,202.58/2,215.63
  6. Step 6: Final answer
    x = 1,761.22

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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.