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Finding the Fourth Proportional to 1,926.83, 2,890.25 and 465.98

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Solution

The fourth proportional to 1,926.83, 2,890.25 and 465.98 is: 698.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.83 : 2,890.25 = 465.98 : x
  2. Step 2: Convert to fraction form
    1,926.83/2,890.25 = 465.98/x
  3. Step 3: Cross multiply
    1,926.83x = 2,890.25 × 465.98
  4. Step 4: Simplify right side
    1,926.83x = 1,346,798.70
  5. Step 5: Solve for x
    x = 1,346,798.70/1,926.83
  6. Step 6: Final answer
    x = 698.97

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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.