Home / 5,083.84-7,015.44-2,815.60

Finding the Fourth Proportional to 5,083.84, 7,015.44 and 2,815.60

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Solution

The fourth proportional to 5,083.84, 7,015.44 and 2,815.60 is: 3,885.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,083.84 : 7,015.44 = 2,815.60 : x
  2. Step 2: Convert to fraction form
    5,083.84/7,015.44 = 2,815.60/x
  3. Step 3: Cross multiply
    5,083.84x = 7,015.44 × 2,815.60
  4. Step 4: Simplify right side
    5,083.84x = 19,752,672.86
  5. Step 5: Solve for x
    x = 19,752,672.86/5,083.84
  6. Step 6: Final answer
    x = 3,885.38

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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.