Home / 4,872.75-6,722.80-2,982.36

Finding the Fourth Proportional to 4,872.75, 6,722.80 and 2,982.36

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Solution

The fourth proportional to 4,872.75, 6,722.80 and 2,982.36 is: 4,114.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.75 : 6,722.80 = 2,982.36 : x
  2. Step 2: Convert to fraction form
    4,872.75/6,722.80 = 2,982.36/x
  3. Step 3: Cross multiply
    4,872.75x = 6,722.80 × 2,982.36
  4. Step 4: Simplify right side
    4,872.75x = 20,049,809.81
  5. Step 5: Solve for x
    x = 20,049,809.81/4,872.75
  6. Step 6: Final answer
    x = 4,114.68

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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.