Home / 3,126.33-4,314.34-1,709.99

Finding the Fourth Proportional to 3,126.33, 4,314.34 and 1,709.99

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Solution

The fourth proportional to 3,126.33, 4,314.34 and 1,709.99 is: 2,359.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.33 : 4,314.34 = 1,709.99 : x
  2. Step 2: Convert to fraction form
    3,126.33/4,314.34 = 1,709.99/x
  3. Step 3: Cross multiply
    3,126.33x = 4,314.34 × 1,709.99
  4. Step 4: Simplify right side
    3,126.33x = 7,377,478.26
  5. Step 5: Solve for x
    x = 7,377,478.26/3,126.33
  6. Step 6: Final answer
    x = 2,359.79

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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.