Home / 4,919.51-7,372.35-3,455.66

Finding the Fourth Proportional to 4,919.51, 7,372.35 and 3,455.66

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Solution

The fourth proportional to 4,919.51, 7,372.35 and 3,455.66 is: 5,178.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.51 : 7,372.35 = 3,455.66 : x
  2. Step 2: Convert to fraction form
    4,919.51/7,372.35 = 3,455.66/x
  3. Step 3: Cross multiply
    4,919.51x = 7,372.35 × 3,455.66
  4. Step 4: Simplify right side
    4,919.51x = 25,476,298.14
  5. Step 5: Solve for x
    x = 25,476,298.14/4,919.51
  6. Step 6: Final answer
    x = 5,178.63

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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.