Home / 4,078.39-6,145-3,688.83

Finding the Fourth Proportional to 4,078.39, 6,145 and 3,688.83

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Solution

The fourth proportional to 4,078.39, 6,145 and 3,688.83 is: 5,558.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.39 : 6,145 = 3,688.83 : x
  2. Step 2: Convert to fraction form
    4,078.39/6,145 = 3,688.83/x
  3. Step 3: Cross multiply
    4,078.39x = 6,145 × 3,688.83
  4. Step 4: Simplify right side
    4,078.39x = 22,667,829.63
  5. Step 5: Solve for x
    x = 22,667,829.63/4,078.39
  6. Step 6: Final answer
    x = 5,558.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.