Home / 7,164.28-9,887.64-4,020.47

Finding the Fourth Proportional to 7,164.28, 9,887.64 and 4,020.47

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Solution

The fourth proportional to 7,164.28, 9,887.64 and 4,020.47 is: 5,548.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,164.28 : 9,887.64 = 4,020.47 : x
  2. Step 2: Convert to fraction form
    7,164.28/9,887.64 = 4,020.47/x
  3. Step 3: Cross multiply
    7,164.28x = 9,887.64 × 4,020.47
  4. Step 4: Simplify right side
    7,164.28x = 39,752,932.55
  5. Step 5: Solve for x
    x = 39,752,932.55/7,164.28
  6. Step 6: Final answer
    x = 5,548.77

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.