Home / 4,078.05-5,656.58-3,938.19

Finding the Fourth Proportional to 4,078.05, 5,656.58 and 3,938.19

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Solution

The fourth proportional to 4,078.05, 5,656.58 and 3,938.19 is: 5,462.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.05 : 5,656.58 = 3,938.19 : x
  2. Step 2: Convert to fraction form
    4,078.05/5,656.58 = 3,938.19/x
  3. Step 3: Cross multiply
    4,078.05x = 5,656.58 × 3,938.19
  4. Step 4: Simplify right side
    4,078.05x = 22,276,696.64
  5. Step 5: Solve for x
    x = 22,276,696.64/4,078.05
  6. Step 6: Final answer
    x = 5,462.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.