Home / 2,790.84-4,176.68-2,095.79

Finding the Fourth Proportional to 2,790.84, 4,176.68 and 2,095.79

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Solution

The fourth proportional to 2,790.84, 4,176.68 and 2,095.79 is: 3,136.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.84 : 4,176.68 = 2,095.79 : x
  2. Step 2: Convert to fraction form
    2,790.84/4,176.68 = 2,095.79/x
  3. Step 3: Cross multiply
    2,790.84x = 4,176.68 × 2,095.79
  4. Step 4: Simplify right side
    2,790.84x = 8,753,412.81
  5. Step 5: Solve for x
    x = 8,753,412.81/2,790.84
  6. Step 6: Final answer
    x = 3,136.48

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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.