Home / 4,912.09-6,778.47-2,673.92

Finding the Fourth Proportional to 4,912.09, 6,778.47 and 2,673.92

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Solution

The fourth proportional to 4,912.09, 6,778.47 and 2,673.92 is: 3,689.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.09 : 6,778.47 = 2,673.92 : x
  2. Step 2: Convert to fraction form
    4,912.09/6,778.47 = 2,673.92/x
  3. Step 3: Cross multiply
    4,912.09x = 6,778.47 × 2,673.92
  4. Step 4: Simplify right side
    4,912.09x = 18,125,075.35
  5. Step 5: Solve for x
    x = 18,125,075.35/4,912.09
  6. Step 6: Final answer
    x = 3,689.89

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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.