Home / 6,427.12-8,869.76-3,908.82

Finding the Fourth Proportional to 6,427.12, 8,869.76 and 3,908.82

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Solution

The fourth proportional to 6,427.12, 8,869.76 and 3,908.82 is: 5,394.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,427.12 : 8,869.76 = 3,908.82 : x
  2. Step 2: Convert to fraction form
    6,427.12/8,869.76 = 3,908.82/x
  3. Step 3: Cross multiply
    6,427.12x = 8,869.76 × 3,908.82
  4. Step 4: Simplify right side
    6,427.12x = 34,670,295.28
  5. Step 5: Solve for x
    x = 34,670,295.28/6,427.12
  6. Step 6: Final answer
    x = 5,394.37

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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.