Home / 3,970.41-5,470.32-2,906.37

Finding the Fourth Proportional to 3,970.41, 5,470.32 and 2,906.37

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Solution

The fourth proportional to 3,970.41, 5,470.32 and 2,906.37 is: 4,004.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.41 : 5,470.32 = 2,906.37 : x
  2. Step 2: Convert to fraction form
    3,970.41/5,470.32 = 2,906.37/x
  3. Step 3: Cross multiply
    3,970.41x = 5,470.32 × 2,906.37
  4. Step 4: Simplify right side
    3,970.41x = 15,898,773.94
  5. Step 5: Solve for x
    x = 15,898,773.94/3,970.41
  6. Step 6: Final answer
    x = 4,004.32

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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.