Home / 2,852.45-3,936.79-2,058.40

Finding the Fourth Proportional to 2,852.45, 3,936.79 and 2,058.40

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Solution

The fourth proportional to 2,852.45, 3,936.79 and 2,058.40 is: 2,840.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,852.45 : 3,936.79 = 2,058.40 : x
  2. Step 2: Convert to fraction form
    2,852.45/3,936.79 = 2,058.40/x
  3. Step 3: Cross multiply
    2,852.45x = 3,936.79 × 2,058.40
  4. Step 4: Simplify right side
    2,852.45x = 8,103,488.54
  5. Step 5: Solve for x
    x = 8,103,488.54/2,852.45
  6. Step 6: Final answer
    x = 2,840.89

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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.