Home / 6,868.78-10,302.59-2,188.60

Finding the Fourth Proportional to 6,868.78, 10,302.59 and 2,188.60

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Solution

The fourth proportional to 6,868.78, 10,302.59 and 2,188.60 is: 3,282.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.78 : 10,302.59 = 2,188.60 : x
  2. Step 2: Convert to fraction form
    6,868.78/10,302.59 = 2,188.60/x
  3. Step 3: Cross multiply
    6,868.78x = 10,302.59 × 2,188.60
  4. Step 4: Simplify right side
    6,868.78x = 22,548,228.19
  5. Step 5: Solve for x
    x = 22,548,228.19/6,868.78
  6. Step 6: Final answer
    x = 3,282.71

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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.