Home / 4,871.52-6,722.68-2,775.64

Finding the Fourth Proportional to 4,871.52, 6,722.68 and 2,775.64

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Solution

The fourth proportional to 4,871.52, 6,722.68 and 2,775.64 is: 3,830.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.52 : 6,722.68 = 2,775.64 : x
  2. Step 2: Convert to fraction form
    4,871.52/6,722.68 = 2,775.64/x
  3. Step 3: Cross multiply
    4,871.52x = 6,722.68 × 2,775.64
  4. Step 4: Simplify right side
    4,871.52x = 18,659,739.52
  5. Step 5: Solve for x
    x = 18,659,739.52/4,871.52
  6. Step 6: Final answer
    x = 3,830.37

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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.