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Finding the Fourth Proportional to 2,917.05, 4,375.55 and 1,683.68

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Solution

The fourth proportional to 2,917.05, 4,375.55 and 1,683.68 is: 2,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.05 : 4,375.55 = 1,683.68 : x
  2. Step 2: Convert to fraction form
    2,917.05/4,375.55 = 1,683.68/x
  3. Step 3: Cross multiply
    2,917.05x = 4,375.55 × 1,683.68
  4. Step 4: Simplify right side
    2,917.05x = 7,366,995.73
  5. Step 5: Solve for x
    x = 7,366,995.73/2,917.05
  6. Step 6: Final answer
    x = 2,525.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.