Home / 3,490.30-4,811.43-2,309.32

Finding the Fourth Proportional to 3,490.30, 4,811.43 and 2,309.32

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Solution

The fourth proportional to 3,490.30, 4,811.43 and 2,309.32 is: 3,183.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.30 : 4,811.43 = 2,309.32 : x
  2. Step 2: Convert to fraction form
    3,490.30/4,811.43 = 2,309.32/x
  3. Step 3: Cross multiply
    3,490.30x = 4,811.43 × 2,309.32
  4. Step 4: Simplify right side
    3,490.30x = 11,111,131.53
  5. Step 5: Solve for x
    x = 11,111,131.53/3,490.30
  6. Step 6: Final answer
    x = 3,183.43

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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.