Home / 2,289.44-3,159.41-1,294.70

Finding the Fourth Proportional to 2,289.44, 3,159.41 and 1,294.70

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Solution

The fourth proportional to 2,289.44, 3,159.41 and 1,294.70 is: 1,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.44 : 3,159.41 = 1,294.70 : x
  2. Step 2: Convert to fraction form
    2,289.44/3,159.41 = 1,294.70/x
  3. Step 3: Cross multiply
    2,289.44x = 3,159.41 × 1,294.70
  4. Step 4: Simplify right side
    2,289.44x = 4,090,465.86
  5. Step 5: Solve for x
    x = 4,090,465.86/2,289.44
  6. Step 6: Final answer
    x = 1,786.66

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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.