Home / 2,280.56-3,420.83-1,761.31

Finding the Fourth Proportional to 2,280.56, 3,420.83 and 1,761.31

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Solution

The fourth proportional to 2,280.56, 3,420.83 and 1,761.31 is: 2,641.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.56 : 3,420.83 = 1,761.31 : x
  2. Step 2: Convert to fraction form
    2,280.56/3,420.83 = 1,761.31/x
  3. Step 3: Cross multiply
    2,280.56x = 3,420.83 × 1,761.31
  4. Step 4: Simplify right side
    2,280.56x = 6,025,137.94
  5. Step 5: Solve for x
    x = 6,025,137.94/2,280.56
  6. Step 6: Final answer
    x = 2,641.96

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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.