Home / 3,391.61-4,680.25-1,858.49

Finding the Fourth Proportional to 3,391.61, 4,680.25 and 1,858.49

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Solution

The fourth proportional to 3,391.61, 4,680.25 and 1,858.49 is: 2,564.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.61 : 4,680.25 = 1,858.49 : x
  2. Step 2: Convert to fraction form
    3,391.61/4,680.25 = 1,858.49/x
  3. Step 3: Cross multiply
    3,391.61x = 4,680.25 × 1,858.49
  4. Step 4: Simplify right side
    3,391.61x = 8,698,213.65
  5. Step 5: Solve for x
    x = 8,698,213.65/3,391.61
  6. Step 6: Final answer
    x = 2,564.63

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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.