Home / 4,259.61-6,389.42-1,338.15

Finding the Fourth Proportional to 4,259.61, 6,389.42 and 1,338.15

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Solution

The fourth proportional to 4,259.61, 6,389.42 and 1,338.15 is: 2,007.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.61 : 6,389.42 = 1,338.15 : x
  2. Step 2: Convert to fraction form
    4,259.61/6,389.42 = 1,338.15/x
  3. Step 3: Cross multiply
    4,259.61x = 6,389.42 × 1,338.15
  4. Step 4: Simplify right side
    4,259.61x = 8,549,995.68
  5. Step 5: Solve for x
    x = 8,549,995.68/4,259.61
  6. Step 6: Final answer
    x = 2,007.23

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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.