Home / 4,919.89-6,789.48-2,930.53

Finding the Fourth Proportional to 4,919.89, 6,789.48 and 2,930.53

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Solution

The fourth proportional to 4,919.89, 6,789.48 and 2,930.53 is: 4,044.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.89 : 6,789.48 = 2,930.53 : x
  2. Step 2: Convert to fraction form
    4,919.89/6,789.48 = 2,930.53/x
  3. Step 3: Cross multiply
    4,919.89x = 6,789.48 × 2,930.53
  4. Step 4: Simplify right side
    4,919.89x = 19,896,774.82
  5. Step 5: Solve for x
    x = 19,896,774.82/4,919.89
  6. Step 6: Final answer
    x = 4,044.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.