Home / 2,090.03-3,134.97-857.43

Finding the Fourth Proportional to 2,090.03, 3,134.97 and 857.43

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Solution

The fourth proportional to 2,090.03, 3,134.97 and 857.43 is: 1,286.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.03 : 3,134.97 = 857.43 : x
  2. Step 2: Convert to fraction form
    2,090.03/3,134.97 = 857.43/x
  3. Step 3: Cross multiply
    2,090.03x = 3,134.97 × 857.43
  4. Step 4: Simplify right side
    2,090.03x = 2,688,017.33
  5. Step 5: Solve for x
    x = 2,688,017.33/2,090.03
  6. Step 6: Final answer
    x = 1,286.12

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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.