Home / 7,124.06-10,687.44-2,961.81

Finding the Fourth Proportional to 7,124.06, 10,687.44 and 2,961.81

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Solution

The fourth proportional to 7,124.06, 10,687.44 and 2,961.81 is: 4,443.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.06 : 10,687.44 = 2,961.81 : x
  2. Step 2: Convert to fraction form
    7,124.06/10,687.44 = 2,961.81/x
  3. Step 3: Cross multiply
    7,124.06x = 10,687.44 × 2,961.81
  4. Step 4: Simplify right side
    7,124.06x = 31,654,166.67
  5. Step 5: Solve for x
    x = 31,654,166.67/7,124.06
  6. Step 6: Final answer
    x = 4,443.28

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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.