Home / 7,742.27-10,684.32-4,205.48

Finding the Fourth Proportional to 7,742.27, 10,684.32 and 4,205.48

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Solution

The fourth proportional to 7,742.27, 10,684.32 and 4,205.48 is: 5,803.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.27 : 10,684.32 = 4,205.48 : x
  2. Step 2: Convert to fraction form
    7,742.27/10,684.32 = 4,205.48/x
  3. Step 3: Cross multiply
    7,742.27x = 10,684.32 × 4,205.48
  4. Step 4: Simplify right side
    7,742.27x = 44,932,640.65
  5. Step 5: Solve for x
    x = 44,932,640.65/7,742.27
  6. Step 6: Final answer
    x = 5,803.55

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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.