Home / 3,738.68-5,608.20-1,430

Finding the Fourth Proportional to 3,738.68, 5,608.20 and 1,430

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Solution

The fourth proportional to 3,738.68, 5,608.20 and 1,430 is: 2,145.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.68 : 5,608.20 = 1,430 : x
  2. Step 2: Convert to fraction form
    3,738.68/5,608.20 = 1,430/x
  3. Step 3: Cross multiply
    3,738.68x = 5,608.20 × 1,430
  4. Step 4: Simplify right side
    3,738.68x = 8,019,726
  5. Step 5: Solve for x
    x = 8,019,726/3,738.68
  6. Step 6: Final answer
    x = 2,145.07

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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.