Home / 4,187.26-6,278.42-1,412.40

Finding the Fourth Proportional to 4,187.26, 6,278.42 and 1,412.40

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Solution

The fourth proportional to 4,187.26, 6,278.42 and 1,412.40 is: 2,117.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.26 : 6,278.42 = 1,412.40 : x
  2. Step 2: Convert to fraction form
    4,187.26/6,278.42 = 1,412.40/x
  3. Step 3: Cross multiply
    4,187.26x = 6,278.42 × 1,412.40
  4. Step 4: Simplify right side
    4,187.26x = 8,867,640.41
  5. Step 5: Solve for x
    x = 8,867,640.41/4,187.26
  6. Step 6: Final answer
    x = 2,117.77

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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.