Home / 7,108.50-10,662.75-1,914.38

Finding the Fourth Proportional to 7,108.50, 10,662.75 and 1,914.38

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Solution

The fourth proportional to 7,108.50, 10,662.75 and 1,914.38 is: 2,871.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.50 : 10,662.75 = 1,914.38 : x
  2. Step 2: Convert to fraction form
    7,108.50/10,662.75 = 1,914.38/x
  3. Step 3: Cross multiply
    7,108.50x = 10,662.75 × 1,914.38
  4. Step 4: Simplify right side
    7,108.50x = 20,412,502.03
  5. Step 5: Solve for x
    x = 20,412,502.03/7,108.50
  6. Step 6: Final answer
    x = 2,871.56

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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.