Home / 1,679.89-2,313.44-1,674.42

Finding the Fourth Proportional to 1,679.89, 2,313.44 and 1,674.42

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Solution

The fourth proportional to 1,679.89, 2,313.44 and 1,674.42 is: 2,305.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679.89 : 2,313.44 = 1,674.42 : x
  2. Step 2: Convert to fraction form
    1,679.89/2,313.44 = 1,674.42/x
  3. Step 3: Cross multiply
    1,679.89x = 2,313.44 × 1,674.42
  4. Step 4: Simplify right side
    1,679.89x = 3,873,667.74
  5. Step 5: Solve for x
    x = 3,873,667.74/1,679.89
  6. Step 6: Final answer
    x = 2,305.91

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1.5x scale

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.