Home / 6,634.50-9,155.61-3,840

Finding the Fourth Proportional to 6,634.50, 9,155.61 and 3,840

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Solution

The fourth proportional to 6,634.50, 9,155.61 and 3,840 is: 5,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,634.50 : 9,155.61 = 3,840 : x
  2. Step 2: Convert to fraction form
    6,634.50/9,155.61 = 3,840/x
  3. Step 3: Cross multiply
    6,634.50x = 9,155.61 × 3,840
  4. Step 4: Simplify right side
    6,634.50x = 35,157,542.40
  5. Step 5: Solve for x
    x = 35,157,542.40/6,634.50
  6. Step 6: Final answer
    x = 5,299.20

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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.