Home / 2,391.61-3,300.44-1,329.39

Finding the Fourth Proportional to 2,391.61, 3,300.44 and 1,329.39

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Solution

The fourth proportional to 2,391.61, 3,300.44 and 1,329.39 is: 1,834.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.61 : 3,300.44 = 1,329.39 : x
  2. Step 2: Convert to fraction form
    2,391.61/3,300.44 = 1,329.39/x
  3. Step 3: Cross multiply
    2,391.61x = 3,300.44 × 1,329.39
  4. Step 4: Simplify right side
    2,391.61x = 4,387,571.93
  5. Step 5: Solve for x
    x = 4,387,571.93/2,391.61
  6. Step 6: Final answer
    x = 1,834.57

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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.