Home / 6,942.10-9,579.45-3,958.60

Finding the Fourth Proportional to 6,942.10, 9,579.45 and 3,958.60

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Solution

The fourth proportional to 6,942.10, 9,579.45 and 3,958.60 is: 5,462.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.10 : 9,579.45 = 3,958.60 : x
  2. Step 2: Convert to fraction form
    6,942.10/9,579.45 = 3,958.60/x
  3. Step 3: Cross multiply
    6,942.10x = 9,579.45 × 3,958.60
  4. Step 4: Simplify right side
    6,942.10x = 37,921,210.77
  5. Step 5: Solve for x
    x = 37,921,210.77/6,942.10
  6. Step 6: Final answer
    x = 5,462.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.