Home / 5,558.56-7,670.16-3,200.80

Finding the Fourth Proportional to 5,558.56, 7,670.16 and 3,200.80

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Solution

The fourth proportional to 5,558.56, 7,670.16 and 3,200.80 is: 4,416.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,558.56 : 7,670.16 = 3,200.80 : x
  2. Step 2: Convert to fraction form
    5,558.56/7,670.16 = 3,200.80/x
  3. Step 3: Cross multiply
    5,558.56x = 7,670.16 × 3,200.80
  4. Step 4: Simplify right side
    5,558.56x = 24,550,648.13
  5. Step 5: Solve for x
    x = 24,550,648.13/5,558.56
  6. Step 6: Final answer
    x = 4,416.73

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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.