Home / 6,905.66-9,530.06-3,921.41

Finding the Fourth Proportional to 6,905.66, 9,530.06 and 3,921.41

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Solution

The fourth proportional to 6,905.66, 9,530.06 and 3,921.41 is: 5,411.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.66 : 9,530.06 = 3,921.41 : x
  2. Step 2: Convert to fraction form
    6,905.66/9,530.06 = 3,921.41/x
  3. Step 3: Cross multiply
    6,905.66x = 9,530.06 × 3,921.41
  4. Step 4: Simplify right side
    6,905.66x = 37,371,276.80
  5. Step 5: Solve for x
    x = 37,371,276.80/6,905.66
  6. Step 6: Final answer
    x = 5,411.69

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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.