Home / 1,754.22-2,631.36-1,405.92

Finding the Fourth Proportional to 1,754.22, 2,631.36 and 1,405.92

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Solution

The fourth proportional to 1,754.22, 2,631.36 and 1,405.92 is: 2,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754.22 : 2,631.36 = 1,405.92 : x
  2. Step 2: Convert to fraction form
    1,754.22/2,631.36 = 1,405.92/x
  3. Step 3: Cross multiply
    1,754.22x = 2,631.36 × 1,405.92
  4. Step 4: Simplify right side
    1,754.22x = 3,699,481.65
  5. Step 5: Solve for x
    x = 3,699,481.65/1,754.22
  6. Step 6: Final answer
    x = 2,108.90

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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.