Home / 3,055.89-4,217.19-1,729.65

Finding the Fourth Proportional to 3,055.89, 4,217.19 and 1,729.65

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Solution

The fourth proportional to 3,055.89, 4,217.19 and 1,729.65 is: 2,386.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,055.89 : 4,217.19 = 1,729.65 : x
  2. Step 2: Convert to fraction form
    3,055.89/4,217.19 = 1,729.65/x
  3. Step 3: Cross multiply
    3,055.89x = 4,217.19 × 1,729.65
  4. Step 4: Simplify right side
    3,055.89x = 7,294,262.68
  5. Step 5: Solve for x
    x = 7,294,262.68/3,055.89
  6. Step 6: Final answer
    x = 2,386.95

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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.