Home / 4,918.47-7,379.06-2,145.38

Finding the Fourth Proportional to 4,918.47, 7,379.06 and 2,145.38

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Solution

The fourth proportional to 4,918.47, 7,379.06 and 2,145.38 is: 3,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.47 : 7,379.06 = 2,145.38 : x
  2. Step 2: Convert to fraction form
    4,918.47/7,379.06 = 2,145.38/x
  3. Step 3: Cross multiply
    4,918.47x = 7,379.06 × 2,145.38
  4. Step 4: Simplify right side
    4,918.47x = 15,830,887.74
  5. Step 5: Solve for x
    x = 15,830,887.74/4,918.47
  6. Step 6: Final answer
    x = 3,218.66

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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.