Home / 4,186.81-6,278.60-1,412.74

Finding the Fourth Proportional to 4,186.81, 6,278.60 and 1,412.74

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Solution

The fourth proportional to 4,186.81, 6,278.60 and 1,412.74 is: 2,118.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,186.81 : 6,278.60 = 1,412.74 : x
  2. Step 2: Convert to fraction form
    4,186.81/6,278.60 = 1,412.74/x
  3. Step 3: Cross multiply
    4,186.81x = 6,278.60 × 1,412.74
  4. Step 4: Simplify right side
    4,186.81x = 8,870,029.36
  5. Step 5: Solve for x
    x = 8,870,029.36/4,186.81
  6. Step 6: Final answer
    x = 2,118.57

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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.