Home / 1,719.87-2,373.62-1,439.61

Finding the Fourth Proportional to 1,719.87, 2,373.62 and 1,439.61

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Solution

The fourth proportional to 1,719.87, 2,373.62 and 1,439.61 is: 1,986.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.87 : 2,373.62 = 1,439.61 : x
  2. Step 2: Convert to fraction form
    1,719.87/2,373.62 = 1,439.61/x
  3. Step 3: Cross multiply
    1,719.87x = 2,373.62 × 1,439.61
  4. Step 4: Simplify right side
    1,719.87x = 3,417,087.09
  5. Step 5: Solve for x
    x = 3,417,087.09/1,719.87
  6. Step 6: Final answer
    x = 1,986.83

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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.