Home / 2,820.10-4,222.05-1,726.60

Finding the Fourth Proportional to 2,820.10, 4,222.05 and 1,726.60

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Solution

The fourth proportional to 2,820.10, 4,222.05 and 1,726.60 is: 2,584.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.10 : 4,222.05 = 1,726.60 : x
  2. Step 2: Convert to fraction form
    2,820.10/4,222.05 = 1,726.60/x
  3. Step 3: Cross multiply
    2,820.10x = 4,222.05 × 1,726.60
  4. Step 4: Simplify right side
    2,820.10x = 7,289,791.53
  5. Step 5: Solve for x
    x = 7,289,791.53/2,820.10
  6. Step 6: Final answer
    x = 2,584.94

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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.