Home / 3,739.28-5,609.96-1,274.30

Finding the Fourth Proportional to 3,739.28, 5,609.96 and 1,274.30

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Solution

The fourth proportional to 3,739.28, 5,609.96 and 1,274.30 is: 1,911.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.28 : 5,609.96 = 1,274.30 : x
  2. Step 2: Convert to fraction form
    3,739.28/5,609.96 = 1,274.30/x
  3. Step 3: Cross multiply
    3,739.28x = 5,609.96 × 1,274.30
  4. Step 4: Simplify right side
    3,739.28x = 7,148,763.42
  5. Step 5: Solve for x
    x = 7,148,763.42/3,739.28
  6. Step 6: Final answer
    x = 1,911.80

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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.