Home / 7,153.39-10,731.63-2,936.65

Finding the Fourth Proportional to 7,153.39, 10,731.63 and 2,936.65

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Solution

The fourth proportional to 7,153.39, 10,731.63 and 2,936.65 is: 4,405.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.39 : 10,731.63 = 2,936.65 : x
  2. Step 2: Convert to fraction form
    7,153.39/10,731.63 = 2,936.65/x
  3. Step 3: Cross multiply
    7,153.39x = 10,731.63 × 2,936.65
  4. Step 4: Simplify right side
    7,153.39x = 31,515,041.24
  5. Step 5: Solve for x
    x = 31,515,041.24/7,153.39
  6. Step 6: Final answer
    x = 4,405.61

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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.