Home / 5,423.09-8,129.14-2,134.89

Finding the Fourth Proportional to 5,423.09, 8,129.14 and 2,134.89

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Solution

The fourth proportional to 5,423.09, 8,129.14 and 2,134.89 is: 3,200.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.09 : 8,129.14 = 2,134.89 : x
  2. Step 2: Convert to fraction form
    5,423.09/8,129.14 = 2,134.89/x
  3. Step 3: Cross multiply
    5,423.09x = 8,129.14 × 2,134.89
  4. Step 4: Simplify right side
    5,423.09x = 17,354,819.69
  5. Step 5: Solve for x
    x = 17,354,819.69/5,423.09
  6. Step 6: Final answer
    x = 3,200.17

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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.