Home / 4,311.36-5,945.76-3,130.56

Finding the Fourth Proportional to 4,311.36, 5,945.76 and 3,130.56

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Solution

The fourth proportional to 4,311.36, 5,945.76 and 3,130.56 is: 4,317.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.36 : 5,945.76 = 3,130.56 : x
  2. Step 2: Convert to fraction form
    4,311.36/5,945.76 = 3,130.56/x
  3. Step 3: Cross multiply
    4,311.36x = 5,945.76 × 3,130.56
  4. Step 4: Simplify right side
    4,311.36x = 18,613,558.43
  5. Step 5: Solve for x
    x = 18,613,558.43/4,311.36
  6. Step 6: Final answer
    x = 4,317.33

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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.