Home / 4,215.77-6,322.29-1,403.86

Finding the Fourth Proportional to 4,215.77, 6,322.29 and 1,403.86

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Solution

The fourth proportional to 4,215.77, 6,322.29 and 1,403.86 is: 2,105.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.77 : 6,322.29 = 1,403.86 : x
  2. Step 2: Convert to fraction form
    4,215.77/6,322.29 = 1,403.86/x
  3. Step 3: Cross multiply
    4,215.77x = 6,322.29 × 1,403.86
  4. Step 4: Simplify right side
    4,215.77x = 8,875,578.43
  5. Step 5: Solve for x
    x = 8,875,578.43/4,215.77
  6. Step 6: Final answer
    x = 2,105.33

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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.