Home / 3,688.37-5,091.90-2,847.26

Finding the Fourth Proportional to 3,688.37, 5,091.90 and 2,847.26

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Solution

The fourth proportional to 3,688.37, 5,091.90 and 2,847.26 is: 3,930.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.37 : 5,091.90 = 2,847.26 : x
  2. Step 2: Convert to fraction form
    3,688.37/5,091.90 = 2,847.26/x
  3. Step 3: Cross multiply
    3,688.37x = 5,091.90 × 2,847.26
  4. Step 4: Simplify right side
    3,688.37x = 14,497,963.19
  5. Step 5: Solve for x
    x = 14,497,963.19/3,688.37
  6. Step 6: Final answer
    x = 3,930.72

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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.