Home / 2,839.58-4,259.35-1,108.21

Finding the Fourth Proportional to 2,839.58, 4,259.35 and 1,108.21

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Solution

The fourth proportional to 2,839.58, 4,259.35 and 1,108.21 is: 1,662.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.58 : 4,259.35 = 1,108.21 : x
  2. Step 2: Convert to fraction form
    2,839.58/4,259.35 = 1,108.21/x
  3. Step 3: Cross multiply
    2,839.58x = 4,259.35 × 1,108.21
  4. Step 4: Simplify right side
    2,839.58x = 4,720,254.26
  5. Step 5: Solve for x
    x = 4,720,254.26/2,839.58
  6. Step 6: Final answer
    x = 1,662.31

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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.