Home / 3,378.89-4,662.78-1,886.94

Finding the Fourth Proportional to 3,378.89, 4,662.78 and 1,886.94

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Solution

The fourth proportional to 3,378.89, 4,662.78 and 1,886.94 is: 2,603.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.89 : 4,662.78 = 1,886.94 : x
  2. Step 2: Convert to fraction form
    3,378.89/4,662.78 = 1,886.94/x
  3. Step 3: Cross multiply
    3,378.89x = 4,662.78 × 1,886.94
  4. Step 4: Simplify right side
    3,378.89x = 8,798,386.09
  5. Step 5: Solve for x
    x = 8,798,386.09/3,378.89
  6. Step 6: Final answer
    x = 2,603.93

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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.