Home / 3,188.36-4,340.94-3,178.49

Finding the Fourth Proportional to 3,188.36, 4,340.94 and 3,178.49

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Solution

The fourth proportional to 3,188.36, 4,340.94 and 3,178.49 is: 4,327.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.36 : 4,340.94 = 3,178.49 : x
  2. Step 2: Convert to fraction form
    3,188.36/4,340.94 = 3,178.49/x
  3. Step 3: Cross multiply
    3,188.36x = 4,340.94 × 3,178.49
  4. Step 4: Simplify right side
    3,188.36x = 13,797,643.05
  5. Step 5: Solve for x
    x = 13,797,643.05/3,188.36
  6. Step 6: Final answer
    x = 4,327.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.