Home / 7,134.26-9,845.50-3,990.44

Finding the Fourth Proportional to 7,134.26, 9,845.50 and 3,990.44

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Solution

The fourth proportional to 7,134.26, 9,845.50 and 3,990.44 is: 5,506.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,134.26 : 9,845.50 = 3,990.44 : x
  2. Step 2: Convert to fraction form
    7,134.26/9,845.50 = 3,990.44/x
  3. Step 3: Cross multiply
    7,134.26x = 9,845.50 × 3,990.44
  4. Step 4: Simplify right side
    7,134.26x = 39,287,877.02
  5. Step 5: Solve for x
    x = 39,287,877.02/7,134.26
  6. Step 6: Final answer
    x = 5,506.93

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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.