Home / 7,680.81-11,522.21-2,684.19

Finding the Fourth Proportional to 7,680.81, 11,522.21 and 2,684.19

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Solution

The fourth proportional to 7,680.81, 11,522.21 and 2,684.19 is: 4,026.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.81 : 11,522.21 = 2,684.19 : x
  2. Step 2: Convert to fraction form
    7,680.81/11,522.21 = 2,684.19/x
  3. Step 3: Cross multiply
    7,680.81x = 11,522.21 × 2,684.19
  4. Step 4: Simplify right side
    7,680.81x = 30,927,787.44
  5. Step 5: Solve for x
    x = 30,927,787.44/7,680.81
  6. Step 6: Final answer
    x = 4,026.63

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1.5x scale

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.