Home / 5,904.50-8,151.58-3,917.78

Finding the Fourth Proportional to 5,904.50, 8,151.58 and 3,917.78

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Solution

The fourth proportional to 5,904.50, 8,151.58 and 3,917.78 is: 5,408.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,904.50 : 8,151.58 = 3,917.78 : x
  2. Step 2: Convert to fraction form
    5,904.50/8,151.58 = 3,917.78/x
  3. Step 3: Cross multiply
    5,904.50x = 8,151.58 × 3,917.78
  4. Step 4: Simplify right side
    5,904.50x = 31,936,097.09
  5. Step 5: Solve for x
    x = 31,936,097.09/5,904.50
  6. Step 6: Final answer
    x = 5,408.77

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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.