Home / 6,905.77-9,528.89-3,880.29

Finding the Fourth Proportional to 6,905.77, 9,528.89 and 3,880.29

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Solution

The fourth proportional to 6,905.77, 9,528.89 and 3,880.29 is: 5,354.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.77 : 9,528.89 = 3,880.29 : x
  2. Step 2: Convert to fraction form
    6,905.77/9,528.89 = 3,880.29/x
  3. Step 3: Cross multiply
    6,905.77x = 9,528.89 × 3,880.29
  4. Step 4: Simplify right side
    6,905.77x = 36,974,866.28
  5. Step 5: Solve for x
    x = 36,974,866.28/6,905.77
  6. Step 6: Final answer
    x = 5,354.20

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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.