Home / 7,127.24-10,685.09-2,970.37

Finding the Fourth Proportional to 7,127.24, 10,685.09 and 2,970.37

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Solution

The fourth proportional to 7,127.24, 10,685.09 and 2,970.37 is: 4,453.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.24 : 10,685.09 = 2,970.37 : x
  2. Step 2: Convert to fraction form
    7,127.24/10,685.09 = 2,970.37/x
  3. Step 3: Cross multiply
    7,127.24x = 10,685.09 × 2,970.37
  4. Step 4: Simplify right side
    7,127.24x = 31,738,670.78
  5. Step 5: Solve for x
    x = 31,738,670.78/7,127.24
  6. Step 6: Final answer
    x = 4,453.15

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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.