Home / 3,124.82-4,708.08-2,828.70

Finding the Fourth Proportional to 3,124.82, 4,708.08 and 2,828.70

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Solution

The fourth proportional to 3,124.82, 4,708.08 and 2,828.70 is: 4,261.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.82 : 4,708.08 = 2,828.70 : x
  2. Step 2: Convert to fraction form
    3,124.82/4,708.08 = 2,828.70/x
  3. Step 3: Cross multiply
    3,124.82x = 4,708.08 × 2,828.70
  4. Step 4: Simplify right side
    3,124.82x = 13,317,745.90
  5. Step 5: Solve for x
    x = 13,317,745.90/3,124.82
  6. Step 6: Final answer
    x = 4,261.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.