Home / 5,290.94-7,936.73-1,780.65

Finding the Fourth Proportional to 5,290.94, 7,936.73 and 1,780.65

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Solution

The fourth proportional to 5,290.94, 7,936.73 and 1,780.65 is: 2,671.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.94 : 7,936.73 = 1,780.65 : x
  2. Step 2: Convert to fraction form
    5,290.94/7,936.73 = 1,780.65/x
  3. Step 3: Cross multiply
    5,290.94x = 7,936.73 × 1,780.65
  4. Step 4: Simplify right side
    5,290.94x = 14,132,542.73
  5. Step 5: Solve for x
    x = 14,132,542.73/5,290.94
  6. Step 6: Final answer
    x = 2,671.08

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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.