Home / 3,271.84-4,515.79-1,855.55

Finding the Fourth Proportional to 3,271.84, 4,515.79 and 1,855.55

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Solution

The fourth proportional to 3,271.84, 4,515.79 and 1,855.55 is: 2,561.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.84 : 4,515.79 = 1,855.55 : x
  2. Step 2: Convert to fraction form
    3,271.84/4,515.79 = 1,855.55/x
  3. Step 3: Cross multiply
    3,271.84x = 4,515.79 × 1,855.55
  4. Step 4: Simplify right side
    3,271.84x = 8,379,274.13
  5. Step 5: Solve for x
    x = 8,379,274.13/3,271.84
  6. Step 6: Final answer
    x = 2,561.03

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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.