Home / 7,919.60-11,878.18-3,536.28

Finding the Fourth Proportional to 7,919.60, 11,878.18 and 3,536.28

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Solution

The fourth proportional to 7,919.60, 11,878.18 and 3,536.28 is: 5,303.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.60 : 11,878.18 = 3,536.28 : x
  2. Step 2: Convert to fraction form
    7,919.60/11,878.18 = 3,536.28/x
  3. Step 3: Cross multiply
    7,919.60x = 11,878.18 × 3,536.28
  4. Step 4: Simplify right side
    7,919.60x = 42,004,561.53
  5. Step 5: Solve for x
    x = 42,004,561.53/7,919.60
  6. Step 6: Final answer
    x = 5,303.88

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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.