Home / 2,830.55-4,236.50-1,993.95

Finding the Fourth Proportional to 2,830.55, 4,236.50 and 1,993.95

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Solution

The fourth proportional to 2,830.55, 4,236.50 and 1,993.95 is: 2,984.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.55 : 4,236.50 = 1,993.95 : x
  2. Step 2: Convert to fraction form
    2,830.55/4,236.50 = 1,993.95/x
  3. Step 3: Cross multiply
    2,830.55x = 4,236.50 × 1,993.95
  4. Step 4: Simplify right side
    2,830.55x = 8,447,374.16
  5. Step 5: Solve for x
    x = 8,447,374.16/2,830.55
  6. Step 6: Final answer
    x = 2,984.36

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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.