Home / 3,739.42-5,608.86-1,142.20

Finding the Fourth Proportional to 3,739.42, 5,608.86 and 1,142.20

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Solution

The fourth proportional to 3,739.42, 5,608.86 and 1,142.20 is: 1,713.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.42 : 5,608.86 = 1,142.20 : x
  2. Step 2: Convert to fraction form
    3,739.42/5,608.86 = 1,142.20/x
  3. Step 3: Cross multiply
    3,739.42x = 5,608.86 × 1,142.20
  4. Step 4: Simplify right side
    3,739.42x = 6,406,439.89
  5. Step 5: Solve for x
    x = 6,406,439.89/3,739.42
  6. Step 6: Final answer
    x = 1,713.22

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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.