Home / 7,127.76-10,681.60-2,963.28

Finding the Fourth Proportional to 7,127.76, 10,681.60 and 2,963.28

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Solution

The fourth proportional to 7,127.76, 10,681.60 and 2,963.28 is: 4,440.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.76 : 10,681.60 = 2,963.28 : x
  2. Step 2: Convert to fraction form
    7,127.76/10,681.60 = 2,963.28/x
  3. Step 3: Cross multiply
    7,127.76x = 10,681.60 × 2,963.28
  4. Step 4: Simplify right side
    7,127.76x = 31,652,571.65
  5. Step 5: Solve for x
    x = 31,652,571.65/7,127.76
  6. Step 6: Final answer
    x = 4,440.75

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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.