Home / 3,245.55-4,477.48-1,986.13

Finding the Fourth Proportional to 3,245.55, 4,477.48 and 1,986.13

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Solution

The fourth proportional to 3,245.55, 4,477.48 and 1,986.13 is: 2,740.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.55 : 4,477.48 = 1,986.13 : x
  2. Step 2: Convert to fraction form
    3,245.55/4,477.48 = 1,986.13/x
  3. Step 3: Cross multiply
    3,245.55x = 4,477.48 × 1,986.13
  4. Step 4: Simplify right side
    3,245.55x = 8,892,857.35
  5. Step 5: Solve for x
    x = 8,892,857.35/3,245.55
  6. Step 6: Final answer
    x = 2,740.02

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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.