Home / 7,077.51-9,766.98-3,933.90

Finding the Fourth Proportional to 7,077.51, 9,766.98 and 3,933.90

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Solution

The fourth proportional to 7,077.51, 9,766.98 and 3,933.90 is: 5,428.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.51 : 9,766.98 = 3,933.90 : x
  2. Step 2: Convert to fraction form
    7,077.51/9,766.98 = 3,933.90/x
  3. Step 3: Cross multiply
    7,077.51x = 9,766.98 × 3,933.90
  4. Step 4: Simplify right side
    7,077.51x = 38,422,322.62
  5. Step 5: Solve for x
    x = 38,422,322.62/7,077.51
  6. Step 6: Final answer
    x = 5,428.79

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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.