Home / 3,118.69-4,304.91-2,674.81

Finding the Fourth Proportional to 3,118.69, 4,304.91 and 2,674.81

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Solution

The fourth proportional to 3,118.69, 4,304.91 and 2,674.81 is: 3,692.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.69 : 4,304.91 = 2,674.81 : x
  2. Step 2: Convert to fraction form
    3,118.69/4,304.91 = 2,674.81/x
  3. Step 3: Cross multiply
    3,118.69x = 4,304.91 × 2,674.81
  4. Step 4: Simplify right side
    3,118.69x = 11,514,816.32
  5. Step 5: Solve for x
    x = 11,514,816.32/3,118.69
  6. Step 6: Final answer
    x = 3,692.20

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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.