Home / 6,290.14-8,680.33-3,418.93

Finding the Fourth Proportional to 6,290.14, 8,680.33 and 3,418.93

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Solution

The fourth proportional to 6,290.14, 8,680.33 and 3,418.93 is: 4,718.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.14 : 8,680.33 = 3,418.93 : x
  2. Step 2: Convert to fraction form
    6,290.14/8,680.33 = 3,418.93/x
  3. Step 3: Cross multiply
    6,290.14x = 8,680.33 × 3,418.93
  4. Step 4: Simplify right side
    6,290.14x = 29,677,440.65
  5. Step 5: Solve for x
    x = 29,677,440.65/6,290.14
  6. Step 6: Final answer
    x = 4,718.09

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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.