Home / 4,259.58-6,389.60-1,338.11

Finding the Fourth Proportional to 4,259.58, 6,389.60 and 1,338.11

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Solution

The fourth proportional to 4,259.58, 6,389.60 and 1,338.11 is: 2,007.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.58 : 6,389.60 = 1,338.11 : x
  2. Step 2: Convert to fraction form
    4,259.58/6,389.60 = 1,338.11/x
  3. Step 3: Cross multiply
    4,259.58x = 6,389.60 × 1,338.11
  4. Step 4: Simplify right side
    4,259.58x = 8,549,996.94
  5. Step 5: Solve for x
    x = 8,549,996.94/4,259.58
  6. Step 6: Final answer
    x = 2,007.24

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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.