Home / 7,171.03-9,895.81-3,984.31

Finding the Fourth Proportional to 7,171.03, 9,895.81 and 3,984.31

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Solution

The fourth proportional to 7,171.03, 9,895.81 and 3,984.31 is: 5,498.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.03 : 9,895.81 = 3,984.31 : x
  2. Step 2: Convert to fraction form
    7,171.03/9,895.81 = 3,984.31/x
  3. Step 3: Cross multiply
    7,171.03x = 9,895.81 × 3,984.31
  4. Step 4: Simplify right side
    7,171.03x = 39,428,006.85
  5. Step 5: Solve for x
    x = 39,428,006.85/7,171.03
  6. Step 6: Final answer
    x = 5,498.23

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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.