Home / 5,088.56-7,021.87-2,819.75

Finding the Fourth Proportional to 5,088.56, 7,021.87 and 2,819.75

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Solution

The fourth proportional to 5,088.56, 7,021.87 and 2,819.75 is: 3,891.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,088.56 : 7,021.87 = 2,819.75 : x
  2. Step 2: Convert to fraction form
    5,088.56/7,021.87 = 2,819.75/x
  3. Step 3: Cross multiply
    5,088.56x = 7,021.87 × 2,819.75
  4. Step 4: Simplify right side
    5,088.56x = 19,799,917.93
  5. Step 5: Solve for x
    x = 19,799,917.93/5,088.56
  6. Step 6: Final answer
    x = 3,891.07

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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.