Home / 3,090.43-4,264.88-1,879.11

Finding the Fourth Proportional to 3,090.43, 4,264.88 and 1,879.11

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Solution

The fourth proportional to 3,090.43, 4,264.88 and 1,879.11 is: 2,593.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.43 : 4,264.88 = 1,879.11 : x
  2. Step 2: Convert to fraction form
    3,090.43/4,264.88 = 1,879.11/x
  3. Step 3: Cross multiply
    3,090.43x = 4,264.88 × 1,879.11
  4. Step 4: Simplify right side
    3,090.43x = 8,014,178.66
  5. Step 5: Solve for x
    x = 8,014,178.66/3,090.43
  6. Step 6: Final answer
    x = 2,593.22

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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.