Home / 4,243.16-6,356.64-2,779.40

Finding the Fourth Proportional to 4,243.16, 6,356.64 and 2,779.40

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Solution

The fourth proportional to 4,243.16, 6,356.64 and 2,779.40 is: 4,163.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,243.16 : 6,356.64 = 2,779.40 : x
  2. Step 2: Convert to fraction form
    4,243.16/6,356.64 = 2,779.40/x
  3. Step 3: Cross multiply
    4,243.16x = 6,356.64 × 2,779.40
  4. Step 4: Simplify right side
    4,243.16x = 17,667,645.22
  5. Step 5: Solve for x
    x = 17,667,645.22/4,243.16
  6. Step 6: Final answer
    x = 4,163.79

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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.