Home / 3,390.93-5,084.88-1,309.33

Finding the Fourth Proportional to 3,390.93, 5,084.88 and 1,309.33

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Solution

The fourth proportional to 3,390.93, 5,084.88 and 1,309.33 is: 1,963.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.93 : 5,084.88 = 1,309.33 : x
  2. Step 2: Convert to fraction form
    3,390.93/5,084.88 = 1,309.33/x
  3. Step 3: Cross multiply
    3,390.93x = 5,084.88 × 1,309.33
  4. Step 4: Simplify right side
    3,390.93x = 6,657,787.38
  5. Step 5: Solve for x
    x = 6,657,787.38/3,390.93
  6. Step 6: Final answer
    x = 1,963.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.