Home / 3,090.43-4,264.75-1,674.09

Finding the Fourth Proportional to 3,090.43, 4,264.75 and 1,674.09

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Solution

The fourth proportional to 3,090.43, 4,264.75 and 1,674.09 is: 2,310.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.43 : 4,264.75 = 1,674.09 : x
  2. Step 2: Convert to fraction form
    3,090.43/4,264.75 = 1,674.09/x
  3. Step 3: Cross multiply
    3,090.43x = 4,264.75 × 1,674.09
  4. Step 4: Simplify right side
    3,090.43x = 7,139,589.41
  5. Step 5: Solve for x
    x = 7,139,589.41/3,090.43
  6. Step 6: Final answer
    x = 2,310.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.