Home / 6,942.66-9,580.86-3,917.58

Finding the Fourth Proportional to 6,942.66, 9,580.86 and 3,917.58

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Solution

The fourth proportional to 6,942.66, 9,580.86 and 3,917.58 is: 5,406.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.66 : 9,580.86 = 3,917.58 : x
  2. Step 2: Convert to fraction form
    6,942.66/9,580.86 = 3,917.58/x
  3. Step 3: Cross multiply
    6,942.66x = 9,580.86 × 3,917.58
  4. Step 4: Simplify right side
    6,942.66x = 37,533,785.52
  5. Step 5: Solve for x
    x = 37,533,785.52/6,942.66
  6. Step 6: Final answer
    x = 5,406.25

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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.