Home / 7,116.91-9,821.48-3,973.09

Finding the Fourth Proportional to 7,116.91, 9,821.48 and 3,973.09

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Solution

The fourth proportional to 7,116.91, 9,821.48 and 3,973.09 is: 5,482.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116.91 : 9,821.48 = 3,973.09 : x
  2. Step 2: Convert to fraction form
    7,116.91/9,821.48 = 3,973.09/x
  3. Step 3: Cross multiply
    7,116.91x = 9,821.48 × 3,973.09
  4. Step 4: Simplify right side
    7,116.91x = 39,021,623.97
  5. Step 5: Solve for x
    x = 39,021,623.97/7,116.91
  6. Step 6: Final answer
    x = 5,482.94

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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.