Home / 3,107.07-4,653.41-1,871.78

Finding the Fourth Proportional to 3,107.07, 4,653.41 and 1,871.78

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Solution

The fourth proportional to 3,107.07, 4,653.41 and 1,871.78 is: 2,803.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.07 : 4,653.41 = 1,871.78 : x
  2. Step 2: Convert to fraction form
    3,107.07/4,653.41 = 1,871.78/x
  3. Step 3: Cross multiply
    3,107.07x = 4,653.41 × 1,871.78
  4. Step 4: Simplify right side
    3,107.07x = 8,710,127.14
  5. Step 5: Solve for x
    x = 8,710,127.14/3,107.07
  6. Step 6: Final answer
    x = 2,803.33

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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.