Home / 5,139.99-7,699.71-2,362.85

Finding the Fourth Proportional to 5,139.99, 7,699.71 and 2,362.85

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Solution

The fourth proportional to 5,139.99, 7,699.71 and 2,362.85 is: 3,539.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.99 : 7,699.71 = 2,362.85 : x
  2. Step 2: Convert to fraction form
    5,139.99/7,699.71 = 2,362.85/x
  3. Step 3: Cross multiply
    5,139.99x = 7,699.71 × 2,362.85
  4. Step 4: Simplify right side
    5,139.99x = 18,193,289.03
  5. Step 5: Solve for x
    x = 18,193,289.03/5,139.99
  6. Step 6: Final answer
    x = 3,539.56

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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.