Home / 7,778.25-11,668.59-2,585.34

Finding the Fourth Proportional to 7,778.25, 11,668.59 and 2,585.34

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Solution

The fourth proportional to 7,778.25, 11,668.59 and 2,585.34 is: 3,878.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.25 : 11,668.59 = 2,585.34 : x
  2. Step 2: Convert to fraction form
    7,778.25/11,668.59 = 2,585.34/x
  3. Step 3: Cross multiply
    7,778.25x = 11,668.59 × 2,585.34
  4. Step 4: Simplify right side
    7,778.25x = 30,167,272.47
  5. Step 5: Solve for x
    x = 30,167,272.47/7,778.25
  6. Step 6: Final answer
    x = 3,878.41

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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.