Home / 1,780.45-2,667.92-1,233.70

Finding the Fourth Proportional to 1,780.45, 2,667.92 and 1,233.70

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Solution

The fourth proportional to 1,780.45, 2,667.92 and 1,233.70 is: 1,848.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780.45 : 2,667.92 = 1,233.70 : x
  2. Step 2: Convert to fraction form
    1,780.45/2,667.92 = 1,233.70/x
  3. Step 3: Cross multiply
    1,780.45x = 2,667.92 × 1,233.70
  4. Step 4: Simplify right side
    1,780.45x = 3,291,393.40
  5. Step 5: Solve for x
    x = 3,291,393.40/1,780.45
  6. Step 6: Final answer
    x = 1,848.64

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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.