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Finding the Fourth Proportional to 5,039.68, 6,955.68 and 3,933.76

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Solution

The fourth proportional to 5,039.68, 6,955.68 and 3,933.76 is: 5,429.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,039.68 : 6,955.68 = 3,933.76 : x
  2. Step 2: Convert to fraction form
    5,039.68/6,955.68 = 3,933.76/x
  3. Step 3: Cross multiply
    5,039.68x = 6,955.68 × 3,933.76
  4. Step 4: Simplify right side
    5,039.68x = 27,361,975.76
  5. Step 5: Solve for x
    x = 27,361,975.76/5,039.68
  6. Step 6: Final answer
    x = 5,429.31

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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.