Home / 3,740.05-5,610.56-1,274.21

Finding the Fourth Proportional to 3,740.05, 5,610.56 and 1,274.21

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Solution

The fourth proportional to 3,740.05, 5,610.56 and 1,274.21 is: 1,911.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.05 : 5,610.56 = 1,274.21 : x
  2. Step 2: Convert to fraction form
    3,740.05/5,610.56 = 1,274.21/x
  3. Step 3: Cross multiply
    3,740.05x = 5,610.56 × 1,274.21
  4. Step 4: Simplify right side
    3,740.05x = 7,148,997.23
  5. Step 5: Solve for x
    x = 7,148,997.23/3,740.05
  6. Step 6: Final answer
    x = 1,911.47

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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.