Home / 4,790.98-7,185.89-1,281.25

Finding the Fourth Proportional to 4,790.98, 7,185.89 and 1,281.25

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Solution

The fourth proportional to 4,790.98, 7,185.89 and 1,281.25 is: 1,921.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,790.98 : 7,185.89 = 1,281.25 : x
  2. Step 2: Convert to fraction form
    4,790.98/7,185.89 = 1,281.25/x
  3. Step 3: Cross multiply
    4,790.98x = 7,185.89 × 1,281.25
  4. Step 4: Simplify right side
    4,790.98x = 9,206,879.23
  5. Step 5: Solve for x
    x = 9,206,879.23/4,790.98
  6. Step 6: Final answer
    x = 1,921.71

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Double scale
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Similar ratio
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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.