Home / 5,139.54-7,709.70-2,018.04

Finding the Fourth Proportional to 5,139.54, 7,709.70 and 2,018.04

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Solution

The fourth proportional to 5,139.54, 7,709.70 and 2,018.04 is: 3,027.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.54 : 7,709.70 = 2,018.04 : x
  2. Step 2: Convert to fraction form
    5,139.54/7,709.70 = 2,018.04/x
  3. Step 3: Cross multiply
    5,139.54x = 7,709.70 × 2,018.04
  4. Step 4: Simplify right side
    5,139.54x = 15,558,482.99
  5. Step 5: Solve for x
    x = 15,558,482.99/5,139.54
  6. Step 6: Final answer
    x = 3,027.21

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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.