Home / 5,316.67-7,975.89-1,618.63

Finding the Fourth Proportional to 5,316.67, 7,975.89 and 1,618.63

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Solution

The fourth proportional to 5,316.67, 7,975.89 and 1,618.63 is: 2,428.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.67 : 7,975.89 = 1,618.63 : x
  2. Step 2: Convert to fraction form
    5,316.67/7,975.89 = 1,618.63/x
  3. Step 3: Cross multiply
    5,316.67x = 7,975.89 × 1,618.63
  4. Step 4: Simplify right side
    5,316.67x = 12,910,014.83
  5. Step 5: Solve for x
    x = 12,910,014.83/5,316.67
  6. Step 6: Final answer
    x = 2,428.21

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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.