Home / 7,122.36-10,678.50-2,736.12

Finding the Fourth Proportional to 7,122.36, 10,678.50 and 2,736.12

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Solution

The fourth proportional to 7,122.36, 10,678.50 and 2,736.12 is: 4,102.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.36 : 10,678.50 = 2,736.12 : x
  2. Step 2: Convert to fraction form
    7,122.36/10,678.50 = 2,736.12/x
  3. Step 3: Cross multiply
    7,122.36x = 10,678.50 × 2,736.12
  4. Step 4: Simplify right side
    7,122.36x = 29,217,657.42
  5. Step 5: Solve for x
    x = 29,217,657.42/7,122.36
  6. Step 6: Final answer
    x = 4,102.24

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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.