Home / 3,669.99-5,064.60-1,991.40

Finding the Fourth Proportional to 3,669.99, 5,064.60 and 1,991.40

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Solution

The fourth proportional to 3,669.99, 5,064.60 and 1,991.40 is: 2,748.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.99 : 5,064.60 = 1,991.40 : x
  2. Step 2: Convert to fraction form
    3,669.99/5,064.60 = 1,991.40/x
  3. Step 3: Cross multiply
    3,669.99x = 5,064.60 × 1,991.40
  4. Step 4: Simplify right side
    3,669.99x = 10,085,644.44
  5. Step 5: Solve for x
    x = 10,085,644.44/3,669.99
  6. Step 6: Final answer
    x = 2,748.14

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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.