Home / 7,787.04-11,680.50-1,943.61

Finding the Fourth Proportional to 7,787.04, 11,680.50 and 1,943.61

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Solution

The fourth proportional to 7,787.04, 11,680.50 and 1,943.61 is: 2,915.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.04 : 11,680.50 = 1,943.61 : x
  2. Step 2: Convert to fraction form
    7,787.04/11,680.50 = 1,943.61/x
  3. Step 3: Cross multiply
    7,787.04x = 11,680.50 × 1,943.61
  4. Step 4: Simplify right side
    7,787.04x = 22,702,336.61
  5. Step 5: Solve for x
    x = 22,702,336.61/7,787.04
  6. Step 6: Final answer
    x = 2,915.40

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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.