Home / 2,790.09-3,845.61-2,316.48

Finding the Fourth Proportional to 2,790.09, 3,845.61 and 2,316.48

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Solution

The fourth proportional to 2,790.09, 3,845.61 and 2,316.48 is: 3,192.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.09 : 3,845.61 = 2,316.48 : x
  2. Step 2: Convert to fraction form
    2,790.09/3,845.61 = 2,316.48/x
  3. Step 3: Cross multiply
    2,790.09x = 3,845.61 × 2,316.48
  4. Step 4: Simplify right side
    2,790.09x = 8,908,278.65
  5. Step 5: Solve for x
    x = 8,908,278.65/2,790.09
  6. Step 6: Final answer
    x = 3,192.83

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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.