Home / 3,790.98-5,231.86-2,112.93

Finding the Fourth Proportional to 3,790.98, 5,231.86 and 2,112.93

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Solution

The fourth proportional to 3,790.98, 5,231.86 and 2,112.93 is: 2,916.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.98 : 5,231.86 = 2,112.93 : x
  2. Step 2: Convert to fraction form
    3,790.98/5,231.86 = 2,112.93/x
  3. Step 3: Cross multiply
    3,790.98x = 5,231.86 × 2,112.93
  4. Step 4: Simplify right side
    3,790.98x = 11,054,548.67
  5. Step 5: Solve for x
    x = 11,054,548.67/3,790.98
  6. Step 6: Final answer
    x = 2,916.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.