Home / 1,742.23-2,405.42-1,080.06

Finding the Fourth Proportional to 1,742.23, 2,405.42 and 1,080.06

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Solution

The fourth proportional to 1,742.23, 2,405.42 and 1,080.06 is: 1,491.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742.23 : 2,405.42 = 1,080.06 : x
  2. Step 2: Convert to fraction form
    1,742.23/2,405.42 = 1,080.06/x
  3. Step 3: Cross multiply
    1,742.23x = 2,405.42 × 1,080.06
  4. Step 4: Simplify right side
    1,742.23x = 2,597,997.93
  5. Step 5: Solve for x
    x = 2,597,997.93/1,742.23
  6. Step 6: Final answer
    x = 1,491.19

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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.