Home / 2,820.54-3,893.55-1,758.84

Finding the Fourth Proportional to 2,820.54, 3,893.55 and 1,758.84

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Solution

The fourth proportional to 2,820.54, 3,893.55 and 1,758.84 is: 2,427.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.54 : 3,893.55 = 1,758.84 : x
  2. Step 2: Convert to fraction form
    2,820.54/3,893.55 = 1,758.84/x
  3. Step 3: Cross multiply
    2,820.54x = 3,893.55 × 1,758.84
  4. Step 4: Simplify right side
    2,820.54x = 6,848,131.48
  5. Step 5: Solve for x
    x = 6,848,131.48/2,820.54
  6. Step 6: Final answer
    x = 2,427.95

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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.