Home / 3,128.41-4,315.24-1,933.08

Finding the Fourth Proportional to 3,128.41, 4,315.24 and 1,933.08

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Solution

The fourth proportional to 3,128.41, 4,315.24 and 1,933.08 is: 2,666.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.41 : 4,315.24 = 1,933.08 : x
  2. Step 2: Convert to fraction form
    3,128.41/4,315.24 = 1,933.08/x
  3. Step 3: Cross multiply
    3,128.41x = 4,315.24 × 1,933.08
  4. Step 4: Simplify right side
    3,128.41x = 8,341,704.14
  5. Step 5: Solve for x
    x = 8,341,704.14/3,128.41
  6. Step 6: Final answer
    x = 2,666.44

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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.