Home / 5,383.99-7,430.48-3,146.61

Finding the Fourth Proportional to 5,383.99, 7,430.48 and 3,146.61

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Solution

The fourth proportional to 5,383.99, 7,430.48 and 3,146.61 is: 4,342.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.99 : 7,430.48 = 3,146.61 : x
  2. Step 2: Convert to fraction form
    5,383.99/7,430.48 = 3,146.61/x
  3. Step 3: Cross multiply
    5,383.99x = 7,430.48 × 3,146.61
  4. Step 4: Simplify right side
    5,383.99x = 23,380,864.30
  5. Step 5: Solve for x
    x = 23,380,864.30/5,383.99
  6. Step 6: Final answer
    x = 4,342.67

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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.