Home / 2,884.20-4,325.70-1,240.80

Finding the Fourth Proportional to 2,884.20, 4,325.70 and 1,240.80

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Solution

The fourth proportional to 2,884.20, 4,325.70 and 1,240.80 is: 1,860.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.20 : 4,325.70 = 1,240.80 : x
  2. Step 2: Convert to fraction form
    2,884.20/4,325.70 = 1,240.80/x
  3. Step 3: Cross multiply
    2,884.20x = 4,325.70 × 1,240.80
  4. Step 4: Simplify right side
    2,884.20x = 5,367,328.56
  5. Step 5: Solve for x
    x = 5,367,328.56/2,884.20
  6. Step 6: Final answer
    x = 1,860.94

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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.