Home / 4,919.57-6,784.58-3,240.37

Finding the Fourth Proportional to 4,919.57, 6,784.58 and 3,240.37

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Solution

The fourth proportional to 4,919.57, 6,784.58 and 3,240.37 is: 4,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.57 : 6,784.58 = 3,240.37 : x
  2. Step 2: Convert to fraction form
    4,919.57/6,784.58 = 3,240.37/x
  3. Step 3: Cross multiply
    4,919.57x = 6,784.58 × 3,240.37
  4. Step 4: Simplify right side
    4,919.57x = 21,984,499.37
  5. Step 5: Solve for x
    x = 21,984,499.37/4,919.57
  6. Step 6: Final answer
    x = 4,468.79

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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.