Home / 2,289.42-3,159.35-1,294.67

Finding the Fourth Proportional to 2,289.42, 3,159.35 and 1,294.67

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Solution

The fourth proportional to 2,289.42, 3,159.35 and 1,294.67 is: 1,786.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.42 : 3,159.35 = 1,294.67 : x
  2. Step 2: Convert to fraction form
    2,289.42/3,159.35 = 1,294.67/x
  3. Step 3: Cross multiply
    2,289.42x = 3,159.35 × 1,294.67
  4. Step 4: Simplify right side
    2,289.42x = 4,090,293.39
  5. Step 5: Solve for x
    x = 4,090,293.39/2,289.42
  6. Step 6: Final answer
    x = 1,786.61

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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.