Home / 3,188.29-4,399.81-1,771.98

Finding the Fourth Proportional to 3,188.29, 4,399.81 and 1,771.98

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Solution

The fourth proportional to 3,188.29, 4,399.81 and 1,771.98 is: 2,445.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.29 : 4,399.81 = 1,771.98 : x
  2. Step 2: Convert to fraction form
    3,188.29/4,399.81 = 1,771.98/x
  3. Step 3: Cross multiply
    3,188.29x = 4,399.81 × 1,771.98
  4. Step 4: Simplify right side
    3,188.29x = 7,796,385.22
  5. Step 5: Solve for x
    x = 7,796,385.22/3,188.29
  6. Step 6: Final answer
    x = 2,445.32

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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.