Home / 4,090.96-6,136.61-1,129.65

Finding the Fourth Proportional to 4,090.96, 6,136.61 and 1,129.65

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Solution

The fourth proportional to 4,090.96, 6,136.61 and 1,129.65 is: 1,694.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.96 : 6,136.61 = 1,129.65 : x
  2. Step 2: Convert to fraction form
    4,090.96/6,136.61 = 1,129.65/x
  3. Step 3: Cross multiply
    4,090.96x = 6,136.61 × 1,129.65
  4. Step 4: Simplify right side
    4,090.96x = 6,932,221.49
  5. Step 5: Solve for x
    x = 6,932,221.49/4,090.96
  6. Step 6: Final answer
    x = 1,694.52

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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.