Home / 7,083.75-9,778.02-4,289.25

Finding the Fourth Proportional to 7,083.75, 9,778.02 and 4,289.25

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Solution

The fourth proportional to 7,083.75, 9,778.02 and 4,289.25 is: 5,920.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,083.75 : 9,778.02 = 4,289.25 : x
  2. Step 2: Convert to fraction form
    7,083.75/9,778.02 = 4,289.25/x
  3. Step 3: Cross multiply
    7,083.75x = 9,778.02 × 4,289.25
  4. Step 4: Simplify right side
    7,083.75x = 41,940,372.29
  5. Step 5: Solve for x
    x = 41,940,372.29/7,083.75
  6. Step 6: Final answer
    x = 5,920.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.