Home / 6,415.29-8,852.15-3,896.09

Finding the Fourth Proportional to 6,415.29, 8,852.15 and 3,896.09

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Solution

The fourth proportional to 6,415.29, 8,852.15 and 3,896.09 is: 5,376.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415.29 : 8,852.15 = 3,896.09 : x
  2. Step 2: Convert to fraction form
    6,415.29/8,852.15 = 3,896.09/x
  3. Step 3: Cross multiply
    6,415.29x = 8,852.15 × 3,896.09
  4. Step 4: Simplify right side
    6,415.29x = 34,488,773.09
  5. Step 5: Solve for x
    x = 34,488,773.09/6,415.29
  6. Step 6: Final answer
    x = 5,376.03

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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.