Home / 2,840.67-4,261.11-1,280.37

Finding the Fourth Proportional to 2,840.67, 4,261.11 and 1,280.37

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Solution

The fourth proportional to 2,840.67, 4,261.11 and 1,280.37 is: 1,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.67 : 4,261.11 = 1,280.37 : x
  2. Step 2: Convert to fraction form
    2,840.67/4,261.11 = 1,280.37/x
  3. Step 3: Cross multiply
    2,840.67x = 4,261.11 × 1,280.37
  4. Step 4: Simplify right side
    2,840.67x = 5,455,797.41
  5. Step 5: Solve for x
    x = 5,455,797.41/2,840.67
  6. Step 6: Final answer
    x = 1,920.60

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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.