Home / 2,289.43-3,159.57-1,294.35

Finding the Fourth Proportional to 2,289.43, 3,159.57 and 1,294.35

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Solution

The fourth proportional to 2,289.43, 3,159.57 and 1,294.35 is: 1,786.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.43 : 3,159.57 = 1,294.35 : x
  2. Step 2: Convert to fraction form
    2,289.43/3,159.57 = 1,294.35/x
  3. Step 3: Cross multiply
    2,289.43x = 3,159.57 × 1,294.35
  4. Step 4: Simplify right side
    2,289.43x = 4,089,589.43
  5. Step 5: Solve for x
    x = 4,089,589.43/2,289.43
  6. Step 6: Final answer
    x = 1,786.29

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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.