Home / 4,680.79-7,021.20-1,218.04

Finding the Fourth Proportional to 4,680.79, 7,021.20 and 1,218.04

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Solution

The fourth proportional to 4,680.79, 7,021.20 and 1,218.04 is: 1,827.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.79 : 7,021.20 = 1,218.04 : x
  2. Step 2: Convert to fraction form
    4,680.79/7,021.20 = 1,218.04/x
  3. Step 3: Cross multiply
    4,680.79x = 7,021.20 × 1,218.04
  4. Step 4: Simplify right side
    4,680.79x = 8,552,102.45
  5. Step 5: Solve for x
    x = 8,552,102.45/4,680.79
  6. Step 6: Final answer
    x = 1,827.06

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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.