Home / 6,812.78-10,219.20-2,068.98

Finding the Fourth Proportional to 6,812.78, 10,219.20 and 2,068.98

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Solution

The fourth proportional to 6,812.78, 10,219.20 and 2,068.98 is: 3,103.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,812.78 : 10,219.20 = 2,068.98 : x
  2. Step 2: Convert to fraction form
    6,812.78/10,219.20 = 2,068.98/x
  3. Step 3: Cross multiply
    6,812.78x = 10,219.20 × 2,068.98
  4. Step 4: Simplify right side
    6,812.78x = 21,143,274.34
  5. Step 5: Solve for x
    x = 21,143,274.34/6,812.78
  6. Step 6: Final answer
    x = 3,103.47

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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.