Home / 4,971.36-7,447.32-3,811.44

Finding the Fourth Proportional to 4,971.36, 7,447.32 and 3,811.44

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Solution

The fourth proportional to 4,971.36, 7,447.32 and 3,811.44 is: 5,709.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.36 : 7,447.32 = 3,811.44 : x
  2. Step 2: Convert to fraction form
    4,971.36/7,447.32 = 3,811.44/x
  3. Step 3: Cross multiply
    4,971.36x = 7,447.32 × 3,811.44
  4. Step 4: Simplify right side
    4,971.36x = 28,385,013.34
  5. Step 5: Solve for x
    x = 28,385,013.34/4,971.36
  6. Step 6: Final answer
    x = 5,709.71

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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.