Home / 4,921.75-6,795.09-3,156.43

Finding the Fourth Proportional to 4,921.75, 6,795.09 and 3,156.43

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Solution

The fourth proportional to 4,921.75, 6,795.09 and 3,156.43 is: 4,357.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.75 : 6,795.09 = 3,156.43 : x
  2. Step 2: Convert to fraction form
    4,921.75/6,795.09 = 3,156.43/x
  3. Step 3: Cross multiply
    4,921.75x = 6,795.09 × 3,156.43
  4. Step 4: Simplify right side
    4,921.75x = 21,448,225.93
  5. Step 5: Solve for x
    x = 21,448,225.93/4,921.75
  6. Step 6: Final answer
    x = 4,357.85

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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.