Home / 7,020.82-9,688.74-3,877

Finding the Fourth Proportional to 7,020.82, 9,688.74 and 3,877

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Solution

The fourth proportional to 7,020.82, 9,688.74 and 3,877 is: 5,350.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.82 : 9,688.74 = 3,877 : x
  2. Step 2: Convert to fraction form
    7,020.82/9,688.74 = 3,877/x
  3. Step 3: Cross multiply
    7,020.82x = 9,688.74 × 3,877
  4. Step 4: Simplify right side
    7,020.82x = 37,563,244.98
  5. Step 5: Solve for x
    x = 37,563,244.98/7,020.82
  6. Step 6: Final answer
    x = 5,350.26

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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.