Home / 5,205.30-7,185.75-3,946.92

Finding the Fourth Proportional to 5,205.30, 7,185.75 and 3,946.92

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Solution

The fourth proportional to 5,205.30, 7,185.75 and 3,946.92 is: 5,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.30 : 7,185.75 = 3,946.92 : x
  2. Step 2: Convert to fraction form
    5,205.30/7,185.75 = 3,946.92/x
  3. Step 3: Cross multiply
    5,205.30x = 7,185.75 × 3,946.92
  4. Step 4: Simplify right side
    5,205.30x = 28,361,580.39
  5. Step 5: Solve for x
    x = 28,361,580.39/5,205.30
  6. Step 6: Final answer
    x = 5,448.60

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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.