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Finding the Fourth Proportional to 5,310.95, 7,961.45 and 1,798.51

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Solution

The fourth proportional to 5,310.95, 7,961.45 and 1,798.51 is: 2,696.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.95 : 7,961.45 = 1,798.51 : x
  2. Step 2: Convert to fraction form
    5,310.95/7,961.45 = 1,798.51/x
  3. Step 3: Cross multiply
    5,310.95x = 7,961.45 × 1,798.51
  4. Step 4: Simplify right side
    5,310.95x = 14,318,732.03
  5. Step 5: Solve for x
    x = 14,318,732.03/5,310.95
  6. Step 6: Final answer
    x = 2,696.08

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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.