Home / 5,188.15-7,790.37-4,999.60

Finding the Fourth Proportional to 5,188.15, 7,790.37 and 4,999.60

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Solution

The fourth proportional to 5,188.15, 7,790.37 and 4,999.60 is: 7,507.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.15 : 7,790.37 = 4,999.60 : x
  2. Step 2: Convert to fraction form
    5,188.15/7,790.37 = 4,999.60/x
  3. Step 3: Cross multiply
    5,188.15x = 7,790.37 × 4,999.60
  4. Step 4: Simplify right side
    5,188.15x = 38,948,733.85
  5. Step 5: Solve for x
    x = 38,948,733.85/5,188.15
  6. Step 6: Final answer
    x = 7,507.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.