Home / 1,329.87-1,825.46-1,179.21

Finding the Fourth Proportional to 1,329.87, 1,825.46 and 1,179.21

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Solution

The fourth proportional to 1,329.87, 1,825.46 and 1,179.21 is: 1,618.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329.87 : 1,825.46 = 1,179.21 : x
  2. Step 2: Convert to fraction form
    1,329.87/1,825.46 = 1,179.21/x
  3. Step 3: Cross multiply
    1,329.87x = 1,825.46 × 1,179.21
  4. Step 4: Simplify right side
    1,329.87x = 2,152,603.63
  5. Step 5: Solve for x
    x = 2,152,603.63/1,329.87
  6. Step 6: Final answer
    x = 1,618.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.