Home / 3,911.07-5,865.98-1,447.05

Finding the Fourth Proportional to 3,911.07, 5,865.98 and 1,447.05

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Solution

The fourth proportional to 3,911.07, 5,865.98 and 1,447.05 is: 2,170.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.07 : 5,865.98 = 1,447.05 : x
  2. Step 2: Convert to fraction form
    3,911.07/5,865.98 = 1,447.05/x
  3. Step 3: Cross multiply
    3,911.07x = 5,865.98 × 1,447.05
  4. Step 4: Simplify right side
    3,911.07x = 8,488,359.12
  5. Step 5: Solve for x
    x = 8,488,359.12/3,911.07
  6. Step 6: Final answer
    x = 2,170.34

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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.