Home / 3,240.39-4,835.30-2,891.32

Finding the Fourth Proportional to 3,240.39, 4,835.30 and 2,891.32

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Solution

The fourth proportional to 3,240.39, 4,835.30 and 2,891.32 is: 4,314.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.39 : 4,835.30 = 2,891.32 : x
  2. Step 2: Convert to fraction form
    3,240.39/4,835.30 = 2,891.32/x
  3. Step 3: Cross multiply
    3,240.39x = 4,835.30 × 2,891.32
  4. Step 4: Simplify right side
    3,240.39x = 13,980,399.60
  5. Step 5: Solve for x
    x = 13,980,399.60/3,240.39
  6. Step 6: Final answer
    x = 4,314.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.