Home / 4,790.86-7,186.64-1,280.79

Finding the Fourth Proportional to 4,790.86, 7,186.64 and 1,280.79

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Solution

The fourth proportional to 4,790.86, 7,186.64 and 1,280.79 is: 1,921.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,790.86 : 7,186.64 = 1,280.79 : x
  2. Step 2: Convert to fraction form
    4,790.86/7,186.64 = 1,280.79/x
  3. Step 3: Cross multiply
    4,790.86x = 7,186.64 × 1,280.79
  4. Step 4: Simplify right side
    4,790.86x = 9,204,562.64
  5. Step 5: Solve for x
    x = 9,204,562.64/4,790.86
  6. Step 6: Final answer
    x = 1,921.28

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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.