Home / 7,077.11-9,767.03-3,933.50

Finding the Fourth Proportional to 7,077.11, 9,767.03 and 3,933.50

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Solution

The fourth proportional to 7,077.11, 9,767.03 and 3,933.50 is: 5,428.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.11 : 9,767.03 = 3,933.50 : x
  2. Step 2: Convert to fraction form
    7,077.11/9,767.03 = 3,933.50/x
  3. Step 3: Cross multiply
    7,077.11x = 9,767.03 × 3,933.50
  4. Step 4: Simplify right side
    7,077.11x = 38,418,592.84
  5. Step 5: Solve for x
    x = 38,418,592.84/7,077.11
  6. Step 6: Final answer
    x = 5,428.57

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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.