Home / 4,878.20-7,318.02-1,956.44

Finding the Fourth Proportional to 4,878.20, 7,318.02 and 1,956.44

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Solution

The fourth proportional to 4,878.20, 7,318.02 and 1,956.44 is: 2,934.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.20 : 7,318.02 = 1,956.44 : x
  2. Step 2: Convert to fraction form
    4,878.20/7,318.02 = 1,956.44/x
  3. Step 3: Cross multiply
    4,878.20x = 7,318.02 × 1,956.44
  4. Step 4: Simplify right side
    4,878.20x = 14,317,267.05
  5. Step 5: Solve for x
    x = 14,317,267.05/4,878.20
  6. Step 6: Final answer
    x = 2,934.95

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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.