Home / 3,739.79-5,609.69-1,107.34

Finding the Fourth Proportional to 3,739.79, 5,609.69 and 1,107.34

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Solution

The fourth proportional to 3,739.79, 5,609.69 and 1,107.34 is: 1,661.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.79 : 5,609.69 = 1,107.34 : x
  2. Step 2: Convert to fraction form
    3,739.79/5,609.69 = 1,107.34/x
  3. Step 3: Cross multiply
    3,739.79x = 5,609.69 × 1,107.34
  4. Step 4: Simplify right side
    3,739.79x = 6,211,834.12
  5. Step 5: Solve for x
    x = 6,211,834.12/3,739.79
  6. Step 6: Final answer
    x = 1,661.01

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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.