Home / 7,112.07-10,669.68-2,730.78

Finding the Fourth Proportional to 7,112.07, 10,669.68 and 2,730.78

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Solution

The fourth proportional to 7,112.07, 10,669.68 and 2,730.78 is: 4,096.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.07 : 10,669.68 = 2,730.78 : x
  2. Step 2: Convert to fraction form
    7,112.07/10,669.68 = 2,730.78/x
  3. Step 3: Cross multiply
    7,112.07x = 10,669.68 × 2,730.78
  4. Step 4: Simplify right side
    7,112.07x = 29,136,548.75
  5. Step 5: Solve for x
    x = 29,136,548.75/7,112.07
  6. Step 6: Final answer
    x = 4,096.77

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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.