Home / 3,208.64-4,418.40-2,976.32

Finding the Fourth Proportional to 3,208.64, 4,418.40 and 2,976.32

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Solution

The fourth proportional to 3,208.64, 4,418.40 and 2,976.32 is: 4,098.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.64 : 4,418.40 = 2,976.32 : x
  2. Step 2: Convert to fraction form
    3,208.64/4,418.40 = 2,976.32/x
  3. Step 3: Cross multiply
    3,208.64x = 4,418.40 × 2,976.32
  4. Step 4: Simplify right side
    3,208.64x = 13,150,572.29
  5. Step 5: Solve for x
    x = 13,150,572.29/3,208.64
  6. Step 6: Final answer
    x = 4,098.49

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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.