Home / 2,820.27-4,230.40-1,064.80

Finding the Fourth Proportional to 2,820.27, 4,230.40 and 1,064.80

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Solution

The fourth proportional to 2,820.27, 4,230.40 and 1,064.80 is: 1,597.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.27 : 4,230.40 = 1,064.80 : x
  2. Step 2: Convert to fraction form
    2,820.27/4,230.40 = 1,064.80/x
  3. Step 3: Cross multiply
    2,820.27x = 4,230.40 × 1,064.80
  4. Step 4: Simplify right side
    2,820.27x = 4,504,529.92
  5. Step 5: Solve for x
    x = 4,504,529.92/2,820.27
  6. Step 6: Final answer
    x = 1,597.20

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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.