Home / 6,078.49-8,387.13-3,718.96

Finding the Fourth Proportional to 6,078.49, 8,387.13 and 3,718.96

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Solution

The fourth proportional to 6,078.49, 8,387.13 and 3,718.96 is: 5,131.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,078.49 : 8,387.13 = 3,718.96 : x
  2. Step 2: Convert to fraction form
    6,078.49/8,387.13 = 3,718.96/x
  3. Step 3: Cross multiply
    6,078.49x = 8,387.13 × 3,718.96
  4. Step 4: Simplify right side
    6,078.49x = 31,191,400.98
  5. Step 5: Solve for x
    x = 31,191,400.98/6,078.49
  6. Step 6: Final answer
    x = 5,131.44

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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.