Home / 5,790.51-8,685.77-3,185.55

Finding the Fourth Proportional to 5,790.51, 8,685.77 and 3,185.55

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Solution

The fourth proportional to 5,790.51, 8,685.77 and 3,185.55 is: 4,778.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,790.51 : 8,685.77 = 3,185.55 : x
  2. Step 2: Convert to fraction form
    5,790.51/8,685.77 = 3,185.55/x
  3. Step 3: Cross multiply
    5,790.51x = 8,685.77 × 3,185.55
  4. Step 4: Simplify right side
    5,790.51x = 27,668,938.70
  5. Step 5: Solve for x
    x = 27,668,938.70/5,790.51
  6. Step 6: Final answer
    x = 4,778.33

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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.