Home / 5,205.48-7,185.91-3,319.60

Finding the Fourth Proportional to 5,205.48, 7,185.91 and 3,319.60

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Solution

The fourth proportional to 5,205.48, 7,185.91 and 3,319.60 is: 4,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.48 : 7,185.91 = 3,319.60 : x
  2. Step 2: Convert to fraction form
    5,205.48/7,185.91 = 3,319.60/x
  3. Step 3: Cross multiply
    5,205.48x = 7,185.91 × 3,319.60
  4. Step 4: Simplify right side
    5,205.48x = 23,854,346.84
  5. Step 5: Solve for x
    x = 23,854,346.84/5,205.48
  6. Step 6: Final answer
    x = 4,582.55

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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.