Home / 4,871.39-6,722.69-2,775.65

Finding the Fourth Proportional to 4,871.39, 6,722.69 and 2,775.65

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Solution

The fourth proportional to 4,871.39, 6,722.69 and 2,775.65 is: 3,830.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.39 : 6,722.69 = 2,775.65 : x
  2. Step 2: Convert to fraction form
    4,871.39/6,722.69 = 2,775.65/x
  3. Step 3: Cross multiply
    4,871.39x = 6,722.69 × 2,775.65
  4. Step 4: Simplify right side
    4,871.39x = 18,659,787.01
  5. Step 5: Solve for x
    x = 18,659,787.01/4,871.39
  6. Step 6: Final answer
    x = 3,830.49

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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.