Home / 3,076.80-4,246.40-1,957.92

Finding the Fourth Proportional to 3,076.80, 4,246.40 and 1,957.92

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Solution

The fourth proportional to 3,076.80, 4,246.40 and 1,957.92 is: 2,702.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.80 : 4,246.40 = 1,957.92 : x
  2. Step 2: Convert to fraction form
    3,076.80/4,246.40 = 1,957.92/x
  3. Step 3: Cross multiply
    3,076.80x = 4,246.40 × 1,957.92
  4. Step 4: Simplify right side
    3,076.80x = 8,314,111.49
  5. Step 5: Solve for x
    x = 8,314,111.49/3,076.80
  6. Step 6: Final answer
    x = 2,702.19

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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.