Home / 7,039.96-9,715.45-3,895.94

Finding the Fourth Proportional to 7,039.96, 9,715.45 and 3,895.94

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Solution

The fourth proportional to 7,039.96, 9,715.45 and 3,895.94 is: 5,376.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039.96 : 9,715.45 = 3,895.94 : x
  2. Step 2: Convert to fraction form
    7,039.96/9,715.45 = 3,895.94/x
  3. Step 3: Cross multiply
    7,039.96x = 9,715.45 × 3,895.94
  4. Step 4: Simplify right side
    7,039.96x = 37,850,810.27
  5. Step 5: Solve for x
    x = 37,850,810.27/7,039.96
  6. Step 6: Final answer
    x = 5,376.57

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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.