Home / 3,425.34-5,111.12-3,216.36

Finding the Fourth Proportional to 3,425.34, 5,111.12 and 3,216.36

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Solution

The fourth proportional to 3,425.34, 5,111.12 and 3,216.36 is: 4,799.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.34 : 5,111.12 = 3,216.36 : x
  2. Step 2: Convert to fraction form
    3,425.34/5,111.12 = 3,216.36/x
  3. Step 3: Cross multiply
    3,425.34x = 5,111.12 × 3,216.36
  4. Step 4: Simplify right side
    3,425.34x = 16,439,185.84
  5. Step 5: Solve for x
    x = 16,439,185.84/3,425.34
  6. Step 6: Final answer
    x = 4,799.29

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1.5x scale

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.