Home / 2,815.75-4,213.86-2,316.19

Finding the Fourth Proportional to 2,815.75, 4,213.86 and 2,316.19

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Solution

The fourth proportional to 2,815.75, 4,213.86 and 2,316.19 is: 3,466.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.75 : 4,213.86 = 2,316.19 : x
  2. Step 2: Convert to fraction form
    2,815.75/4,213.86 = 2,316.19/x
  3. Step 3: Cross multiply
    2,815.75x = 4,213.86 × 2,316.19
  4. Step 4: Simplify right side
    2,815.75x = 9,760,100.39
  5. Step 5: Solve for x
    x = 9,760,100.39/2,815.75
  6. Step 6: Final answer
    x = 3,466.25

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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.