Home / 4,878.80-7,317.68-1,956.32

Finding the Fourth Proportional to 4,878.80, 7,317.68 and 1,956.32

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Solution

The fourth proportional to 4,878.80, 7,317.68 and 1,956.32 is: 2,934.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.80 : 7,317.68 = 1,956.32 : x
  2. Step 2: Convert to fraction form
    4,878.80/7,317.68 = 1,956.32/x
  3. Step 3: Cross multiply
    4,878.80x = 7,317.68 × 1,956.32
  4. Step 4: Simplify right side
    4,878.80x = 14,315,723.74
  5. Step 5: Solve for x
    x = 14,315,723.74/4,878.80
  6. Step 6: Final answer
    x = 2,934.27

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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.