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Finding the Fourth Proportional to 3,214.88, 4,820.68 and 1,482

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Solution

The fourth proportional to 3,214.88, 4,820.68 and 1,482 is: 2,222.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214.88 : 4,820.68 = 1,482 : x
  2. Step 2: Convert to fraction form
    3,214.88/4,820.68 = 1,482/x
  3. Step 3: Cross multiply
    3,214.88x = 4,820.68 × 1,482
  4. Step 4: Simplify right side
    3,214.88x = 7,144,247.76
  5. Step 5: Solve for x
    x = 7,144,247.76/3,214.88
  6. Step 6: Final answer
    x = 2,222.24

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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.