Home / 3,877.69-5,818.08-1,412.68

Finding the Fourth Proportional to 3,877.69, 5,818.08 and 1,412.68

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Solution

The fourth proportional to 3,877.69, 5,818.08 and 1,412.68 is: 2,119.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.69 : 5,818.08 = 1,412.68 : x
  2. Step 2: Convert to fraction form
    3,877.69/5,818.08 = 1,412.68/x
  3. Step 3: Cross multiply
    3,877.69x = 5,818.08 × 1,412.68
  4. Step 4: Simplify right side
    3,877.69x = 8,219,085.25
  5. Step 5: Solve for x
    x = 8,219,085.25/3,877.69
  6. Step 6: Final answer
    x = 2,119.58

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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.