Home / 3,149.96-4,346.31-1,805.99

Finding the Fourth Proportional to 3,149.96, 4,346.31 and 1,805.99

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Solution

The fourth proportional to 3,149.96, 4,346.31 and 1,805.99 is: 2,491.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.96 : 4,346.31 = 1,805.99 : x
  2. Step 2: Convert to fraction form
    3,149.96/4,346.31 = 1,805.99/x
  3. Step 3: Cross multiply
    3,149.96x = 4,346.31 × 1,805.99
  4. Step 4: Simplify right side
    3,149.96x = 7,849,388.67
  5. Step 5: Solve for x
    x = 7,849,388.67/3,149.96
  6. Step 6: Final answer
    x = 2,491.90

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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.