Home / 2,855.40-4,276.17-1,975.56

Finding the Fourth Proportional to 2,855.40, 4,276.17 and 1,975.56

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Solution

The fourth proportional to 2,855.40, 4,276.17 and 1,975.56 is: 2,958.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.40 : 4,276.17 = 1,975.56 : x
  2. Step 2: Convert to fraction form
    2,855.40/4,276.17 = 1,975.56/x
  3. Step 3: Cross multiply
    2,855.40x = 4,276.17 × 1,975.56
  4. Step 4: Simplify right side
    2,855.40x = 8,447,830.41
  5. Step 5: Solve for x
    x = 8,447,830.41/2,855.40
  6. Step 6: Final answer
    x = 2,958.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.