Home / 6,942.07-9,580.98-3,917.81

Finding the Fourth Proportional to 6,942.07, 9,580.98 and 3,917.81

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Solution

The fourth proportional to 6,942.07, 9,580.98 and 3,917.81 is: 5,407.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.07 : 9,580.98 = 3,917.81 : x
  2. Step 2: Convert to fraction form
    6,942.07/9,580.98 = 3,917.81/x
  3. Step 3: Cross multiply
    6,942.07x = 9,580.98 × 3,917.81
  4. Step 4: Simplify right side
    6,942.07x = 37,536,459.25
  5. Step 5: Solve for x
    x = 37,536,459.25/6,942.07
  6. Step 6: Final answer
    x = 5,407.10

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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.