Home / 3,815.51-5,262.67-3,107.36

Finding the Fourth Proportional to 3,815.51, 5,262.67 and 3,107.36

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Solution

The fourth proportional to 3,815.51, 5,262.67 and 3,107.36 is: 4,285.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.51 : 5,262.67 = 3,107.36 : x
  2. Step 2: Convert to fraction form
    3,815.51/5,262.67 = 3,107.36/x
  3. Step 3: Cross multiply
    3,815.51x = 5,262.67 × 3,107.36
  4. Step 4: Simplify right side
    3,815.51x = 16,353,027.29
  5. Step 5: Solve for x
    x = 16,353,027.29/3,815.51
  6. Step 6: Final answer
    x = 4,285.94

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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.