Home / 4,118.86-6,178.58-1,345.33

Finding the Fourth Proportional to 4,118.86, 6,178.58 and 1,345.33

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Solution

The fourth proportional to 4,118.86, 6,178.58 and 1,345.33 is: 2,018.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,118.86 : 6,178.58 = 1,345.33 : x
  2. Step 2: Convert to fraction form
    4,118.86/6,178.58 = 1,345.33/x
  3. Step 3: Cross multiply
    4,118.86x = 6,178.58 × 1,345.33
  4. Step 4: Simplify right side
    4,118.86x = 8,312,229.03
  5. Step 5: Solve for x
    x = 8,312,229.03/4,118.86
  6. Step 6: Final answer
    x = 2,018.09

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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.