Home / 3,388.26-5,078.34-1,925.40

Finding the Fourth Proportional to 3,388.26, 5,078.34 and 1,925.40

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Solution

The fourth proportional to 3,388.26, 5,078.34 and 1,925.40 is: 2,885.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.26 : 5,078.34 = 1,925.40 : x
  2. Step 2: Convert to fraction form
    3,388.26/5,078.34 = 1,925.40/x
  3. Step 3: Cross multiply
    3,388.26x = 5,078.34 × 1,925.40
  4. Step 4: Simplify right side
    3,388.26x = 9,777,835.84
  5. Step 5: Solve for x
    x = 9,777,835.84/3,388.26
  6. Step 6: Final answer
    x = 2,885.80

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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.