Home / 1,724.23-2,376.37-1,407.46

Finding the Fourth Proportional to 1,724.23, 2,376.37 and 1,407.46

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Solution

The fourth proportional to 1,724.23, 2,376.37 and 1,407.46 is: 1,939.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.23 : 2,376.37 = 1,407.46 : x
  2. Step 2: Convert to fraction form
    1,724.23/2,376.37 = 1,407.46/x
  3. Step 3: Cross multiply
    1,724.23x = 2,376.37 × 1,407.46
  4. Step 4: Simplify right side
    1,724.23x = 3,344,645.72
  5. Step 5: Solve for x
    x = 3,344,645.72/1,724.23
  6. Step 6: Final answer
    x = 1,939.79

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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.