Home / 2,815.35-3,889.14-2,033.49

Finding the Fourth Proportional to 2,815.35, 3,889.14 and 2,033.49

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Solution

The fourth proportional to 2,815.35, 3,889.14 and 2,033.49 is: 2,809.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.35 : 3,889.14 = 2,033.49 : x
  2. Step 2: Convert to fraction form
    2,815.35/3,889.14 = 2,033.49/x
  3. Step 3: Cross multiply
    2,815.35x = 3,889.14 × 2,033.49
  4. Step 4: Simplify right side
    2,815.35x = 7,908,527.30
  5. Step 5: Solve for x
    x = 7,908,527.30/2,815.35
  6. Step 6: Final answer
    x = 2,809.07

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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.