Home / 2,812.35-4,214.87-1,512.30

Finding the Fourth Proportional to 2,812.35, 4,214.87 and 1,512.30

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Solution

The fourth proportional to 2,812.35, 4,214.87 and 1,512.30 is: 2,266.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.35 : 4,214.87 = 1,512.30 : x
  2. Step 2: Convert to fraction form
    2,812.35/4,214.87 = 1,512.30/x
  3. Step 3: Cross multiply
    2,812.35x = 4,214.87 × 1,512.30
  4. Step 4: Simplify right side
    2,812.35x = 6,374,147.90
  5. Step 5: Solve for x
    x = 6,374,147.90/2,812.35
  6. Step 6: Final answer
    x = 2,266.48

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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.