Home / 4,912.36-6,784.10-4,209.64

Finding the Fourth Proportional to 4,912.36, 6,784.10 and 4,209.64

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Solution

The fourth proportional to 4,912.36, 6,784.10 and 4,209.64 is: 5,813.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.36 : 6,784.10 = 4,209.64 : x
  2. Step 2: Convert to fraction form
    4,912.36/6,784.10 = 4,209.64/x
  3. Step 3: Cross multiply
    4,912.36x = 6,784.10 × 4,209.64
  4. Step 4: Simplify right side
    4,912.36x = 28,558,618.72
  5. Step 5: Solve for x
    x = 28,558,618.72/4,912.36
  6. Step 6: Final answer
    x = 5,813.62

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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.