Home / 2,812.56-4,217.04-1,351.68

Finding the Fourth Proportional to 2,812.56, 4,217.04 and 1,351.68

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Solution

The fourth proportional to 2,812.56, 4,217.04 and 1,351.68 is: 2,026.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.56 : 4,217.04 = 1,351.68 : x
  2. Step 2: Convert to fraction form
    2,812.56/4,217.04 = 1,351.68/x
  3. Step 3: Cross multiply
    2,812.56x = 4,217.04 × 1,351.68
  4. Step 4: Simplify right side
    2,812.56x = 5,700,088.63
  5. Step 5: Solve for x
    x = 5,700,088.63/2,812.56
  6. Step 6: Final answer
    x = 2,026.65

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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.