Home / 6,290.46-8,683.20-3,640.14

Finding the Fourth Proportional to 6,290.46, 8,683.20 and 3,640.14

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Solution

The fourth proportional to 6,290.46, 8,683.20 and 3,640.14 is: 5,024.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.46 : 8,683.20 = 3,640.14 : x
  2. Step 2: Convert to fraction form
    6,290.46/8,683.20 = 3,640.14/x
  3. Step 3: Cross multiply
    6,290.46x = 8,683.20 × 3,640.14
  4. Step 4: Simplify right side
    6,290.46x = 31,608,063.65
  5. Step 5: Solve for x
    x = 31,608,063.65/6,290.46
  6. Step 6: Final answer
    x = 5,024.76

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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.