Home / 2,812.47-4,215.06-1,512.42

Finding the Fourth Proportional to 2,812.47, 4,215.06 and 1,512.42

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Solution

The fourth proportional to 2,812.47, 4,215.06 and 1,512.42 is: 2,266.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.47 : 4,215.06 = 1,512.42 : x
  2. Step 2: Convert to fraction form
    2,812.47/4,215.06 = 1,512.42/x
  3. Step 3: Cross multiply
    2,812.47x = 4,215.06 × 1,512.42
  4. Step 4: Simplify right side
    2,812.47x = 6,374,941.05
  5. Step 5: Solve for x
    x = 6,374,941.05/2,812.47
  6. Step 6: Final answer
    x = 2,266.67

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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.