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Finding the Fourth Proportional to 5,633.97, 7,776.73 and 3,955.80

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Solution

The fourth proportional to 5,633.97, 7,776.73 and 3,955.80 is: 5,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,633.97 : 7,776.73 = 3,955.80 : x
  2. Step 2: Convert to fraction form
    5,633.97/7,776.73 = 3,955.80/x
  3. Step 3: Cross multiply
    5,633.97x = 7,776.73 × 3,955.80
  4. Step 4: Simplify right side
    5,633.97x = 30,763,188.53
  5. Step 5: Solve for x
    x = 30,763,188.53/5,633.97
  6. Step 6: Final answer
    x = 5,460.30

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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.