Home / 1,909.24-2,867.07-1,667.86

Finding the Fourth Proportional to 1,909.24, 2,867.07 and 1,667.86

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Solution

The fourth proportional to 1,909.24, 2,867.07 and 1,667.86 is: 2,504.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.24 : 2,867.07 = 1,667.86 : x
  2. Step 2: Convert to fraction form
    1,909.24/2,867.07 = 1,667.86/x
  3. Step 3: Cross multiply
    1,909.24x = 2,867.07 × 1,667.86
  4. Step 4: Simplify right side
    1,909.24x = 4,781,871.37
  5. Step 5: Solve for x
    x = 4,781,871.37/1,909.24
  6. Step 6: Final answer
    x = 2,504.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.