Home / 2,879.75-4,317.11-2,390.23

Finding the Fourth Proportional to 2,879.75, 4,317.11 and 2,390.23

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Solution

The fourth proportional to 2,879.75, 4,317.11 and 2,390.23 is: 3,583.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.75 : 4,317.11 = 2,390.23 : x
  2. Step 2: Convert to fraction form
    2,879.75/4,317.11 = 2,390.23/x
  3. Step 3: Cross multiply
    2,879.75x = 4,317.11 × 2,390.23
  4. Step 4: Simplify right side
    2,879.75x = 10,318,877.41
  5. Step 5: Solve for x
    x = 10,318,877.41/2,879.75
  6. Step 6: Final answer
    x = 3,583.25

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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.