Home / 4,259.94-6,390.52-1,338.47

Finding the Fourth Proportional to 4,259.94, 6,390.52 and 1,338.47

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Solution

The fourth proportional to 4,259.94, 6,390.52 and 1,338.47 is: 2,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.94 : 6,390.52 = 1,338.47 : x
  2. Step 2: Convert to fraction form
    4,259.94/6,390.52 = 1,338.47/x
  3. Step 3: Cross multiply
    4,259.94x = 6,390.52 × 1,338.47
  4. Step 4: Simplify right side
    4,259.94x = 8,553,547.68
  5. Step 5: Solve for x
    x = 8,553,547.68/4,259.94
  6. Step 6: Final answer
    x = 2,007.90

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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.