Home / 7,079.45-9,769.77-3,892.88

Finding the Fourth Proportional to 7,079.45, 9,769.77 and 3,892.88

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Solution

The fourth proportional to 7,079.45, 9,769.77 and 3,892.88 is: 5,372.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.45 : 9,769.77 = 3,892.88 : x
  2. Step 2: Convert to fraction form
    7,079.45/9,769.77 = 3,892.88/x
  3. Step 3: Cross multiply
    7,079.45x = 9,769.77 × 3,892.88
  4. Step 4: Simplify right side
    7,079.45x = 38,032,566.66
  5. Step 5: Solve for x
    x = 38,032,566.66/7,079.45
  6. Step 6: Final answer
    x = 5,372.25

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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.