Home / 6,418.21-8,857.13-3,901.14

Finding the Fourth Proportional to 6,418.21, 8,857.13 and 3,901.14

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Solution

The fourth proportional to 6,418.21, 8,857.13 and 3,901.14 is: 5,383.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.21 : 8,857.13 = 3,901.14 : x
  2. Step 2: Convert to fraction form
    6,418.21/8,857.13 = 3,901.14/x
  3. Step 3: Cross multiply
    6,418.21x = 8,857.13 × 3,901.14
  4. Step 4: Simplify right side
    6,418.21x = 34,552,904.13
  5. Step 5: Solve for x
    x = 34,552,904.13/6,418.21
  6. Step 6: Final answer
    x = 5,383.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.