Home / 4,870.89-6,722.64-2,855.43

Finding the Fourth Proportional to 4,870.89, 6,722.64 and 2,855.43

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Solution

The fourth proportional to 4,870.89, 6,722.64 and 2,855.43 is: 3,940.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.89 : 6,722.64 = 2,855.43 : x
  2. Step 2: Convert to fraction form
    4,870.89/6,722.64 = 2,855.43/x
  3. Step 3: Cross multiply
    4,870.89x = 6,722.64 × 2,855.43
  4. Step 4: Simplify right side
    4,870.89x = 19,196,027.94
  5. Step 5: Solve for x
    x = 19,196,027.94/4,870.89
  6. Step 6: Final answer
    x = 3,940.97

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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.