Home / 2,812.25-4,217.64-837.35

Finding the Fourth Proportional to 2,812.25, 4,217.64 and 837.35

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Solution

The fourth proportional to 2,812.25, 4,217.64 and 837.35 is: 1,255.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.25 : 4,217.64 = 837.35 : x
  2. Step 2: Convert to fraction form
    2,812.25/4,217.64 = 837.35/x
  3. Step 3: Cross multiply
    2,812.25x = 4,217.64 × 837.35
  4. Step 4: Simplify right side
    2,812.25x = 3,531,632.44
  5. Step 5: Solve for x
    x = 3,531,632.44/2,812.25
  6. Step 6: Final answer
    x = 1,255.80

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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.