Home / 8,090.34-12,130.49-3,407.94

Finding the Fourth Proportional to 8,090.34, 12,130.49 and 3,407.94

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Solution

The fourth proportional to 8,090.34, 12,130.49 and 3,407.94 is: 5,109.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,090.34 : 12,130.49 = 3,407.94 : x
  2. Step 2: Convert to fraction form
    8,090.34/12,130.49 = 3,407.94/x
  3. Step 3: Cross multiply
    8,090.34x = 12,130.49 × 3,407.94
  4. Step 4: Simplify right side
    8,090.34x = 41,339,965.05
  5. Step 5: Solve for x
    x = 41,339,965.05/8,090.34
  6. Step 6: Final answer
    x = 5,109.79

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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.