Home / 5,317.11-7,972.65-1,618.29

Finding the Fourth Proportional to 5,317.11, 7,972.65 and 1,618.29

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Solution

The fourth proportional to 5,317.11, 7,972.65 and 1,618.29 is: 2,426.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.11 : 7,972.65 = 1,618.29 : x
  2. Step 2: Convert to fraction form
    5,317.11/7,972.65 = 1,618.29/x
  3. Step 3: Cross multiply
    5,317.11x = 7,972.65 × 1,618.29
  4. Step 4: Simplify right side
    5,317.11x = 12,902,059.77
  5. Step 5: Solve for x
    x = 12,902,059.77/5,317.11
  6. Step 6: Final answer
    x = 2,426.52

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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.