Home / 1,719.30-2,374.07-1,279.17

Finding the Fourth Proportional to 1,719.30, 2,374.07 and 1,279.17

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Solution

The fourth proportional to 1,719.30, 2,374.07 and 1,279.17 is: 1,766.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.30 : 2,374.07 = 1,279.17 : x
  2. Step 2: Convert to fraction form
    1,719.30/2,374.07 = 1,279.17/x
  3. Step 3: Cross multiply
    1,719.30x = 2,374.07 × 1,279.17
  4. Step 4: Simplify right side
    1,719.30x = 3,036,839.12
  5. Step 5: Solve for x
    x = 3,036,839.12/1,719.30
  6. Step 6: Final answer
    x = 1,766.32

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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.