Home / 3,148.80-4,343.34-2,485.44

Finding the Fourth Proportional to 3,148.80, 4,343.34 and 2,485.44

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Solution

The fourth proportional to 3,148.80, 4,343.34 and 2,485.44 is: 3,428.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.80 : 4,343.34 = 2,485.44 : x
  2. Step 2: Convert to fraction form
    3,148.80/4,343.34 = 2,485.44/x
  3. Step 3: Cross multiply
    3,148.80x = 4,343.34 × 2,485.44
  4. Step 4: Simplify right side
    3,148.80x = 10,795,110.97
  5. Step 5: Solve for x
    x = 10,795,110.97/3,148.80
  6. Step 6: Final answer
    x = 3,428.33

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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.