Home / 4,871.63-6,722.85-2,775.75

Finding the Fourth Proportional to 4,871.63, 6,722.85 and 2,775.75

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Solution

The fourth proportional to 4,871.63, 6,722.85 and 2,775.75 is: 3,830.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.63 : 6,722.85 = 2,775.75 : x
  2. Step 2: Convert to fraction form
    4,871.63/6,722.85 = 2,775.75/x
  3. Step 3: Cross multiply
    4,871.63x = 6,722.85 × 2,775.75
  4. Step 4: Simplify right side
    4,871.63x = 18,660,950.89
  5. Step 5: Solve for x
    x = 18,660,950.89/4,871.63
  6. Step 6: Final answer
    x = 3,830.54

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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.