Home / 6,418.81-8,857.09-3,585.84

Finding the Fourth Proportional to 6,418.81, 8,857.09 and 3,585.84

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Solution

The fourth proportional to 6,418.81, 8,857.09 and 3,585.84 is: 4,947.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.81 : 8,857.09 = 3,585.84 : x
  2. Step 2: Convert to fraction form
    6,418.81/8,857.09 = 3,585.84/x
  3. Step 3: Cross multiply
    6,418.81x = 8,857.09 × 3,585.84
  4. Step 4: Simplify right side
    6,418.81x = 31,760,083.61
  5. Step 5: Solve for x
    x = 31,760,083.61/6,418.81
  6. Step 6: Final answer
    x = 4,947.97

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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.