Home / 4,912.31-6,776.12-2,922.75

Finding the Fourth Proportional to 4,912.31, 6,776.12 and 2,922.75

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Solution

The fourth proportional to 4,912.31, 6,776.12 and 2,922.75 is: 4,031.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.31 : 6,776.12 = 2,922.75 : x
  2. Step 2: Convert to fraction form
    4,912.31/6,776.12 = 2,922.75/x
  3. Step 3: Cross multiply
    4,912.31x = 6,776.12 × 2,922.75
  4. Step 4: Simplify right side
    4,912.31x = 19,804,912.04
  5. Step 5: Solve for x
    x = 19,804,912.04/4,912.31
  6. Step 6: Final answer
    x = 4,031.69

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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.