Home / 3,709.09-5,118.51-2,137.24

Finding the Fourth Proportional to 3,709.09, 5,118.51 and 2,137.24

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Solution

The fourth proportional to 3,709.09, 5,118.51 and 2,137.24 is: 2,949.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.09 : 5,118.51 = 2,137.24 : x
  2. Step 2: Convert to fraction form
    3,709.09/5,118.51 = 2,137.24/x
  3. Step 3: Cross multiply
    3,709.09x = 5,118.51 × 2,137.24
  4. Step 4: Simplify right side
    3,709.09x = 10,939,484.31
  5. Step 5: Solve for x
    x = 10,939,484.31/3,709.09
  6. Step 6: Final answer
    x = 2,949.37

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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.