Home / 8,680.58-13,020.88-2,106.77

Finding the Fourth Proportional to 8,680.58, 13,020.88 and 2,106.77

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Solution

The fourth proportional to 8,680.58, 13,020.88 and 2,106.77 is: 3,160.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.58 : 13,020.88 = 2,106.77 : x
  2. Step 2: Convert to fraction form
    8,680.58/13,020.88 = 2,106.77/x
  3. Step 3: Cross multiply
    8,680.58x = 13,020.88 × 2,106.77
  4. Step 4: Simplify right side
    8,680.58x = 27,432,018.56
  5. Step 5: Solve for x
    x = 27,432,018.56/8,680.58
  6. Step 6: Final answer
    x = 3,160.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.