Home / 3,260.94-4,886.83-1,780.15

Finding the Fourth Proportional to 3,260.94, 4,886.83 and 1,780.15

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Solution

The fourth proportional to 3,260.94, 4,886.83 and 1,780.15 is: 2,667.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.94 : 4,886.83 = 1,780.15 : x
  2. Step 2: Convert to fraction form
    3,260.94/4,886.83 = 1,780.15/x
  3. Step 3: Cross multiply
    3,260.94x = 4,886.83 × 1,780.15
  4. Step 4: Simplify right side
    3,260.94x = 8,699,290.42
  5. Step 5: Solve for x
    x = 8,699,290.42/3,260.94
  6. Step 6: Final answer
    x = 2,667.72

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1.5x scale

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.