Home / 3,189.38-4,401.14-1,863

Finding the Fourth Proportional to 3,189.38, 4,401.14 and 1,863

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Solution

The fourth proportional to 3,189.38, 4,401.14 and 1,863 is: 2,570.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.38 : 4,401.14 = 1,863 : x
  2. Step 2: Convert to fraction form
    3,189.38/4,401.14 = 1,863/x
  3. Step 3: Cross multiply
    3,189.38x = 4,401.14 × 1,863
  4. Step 4: Simplify right side
    3,189.38x = 8,199,314.51
  5. Step 5: Solve for x
    x = 8,199,314.51/3,189.38
  6. Step 6: Final answer
    x = 2,570.82

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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.