Home / 7,075.11-9,764.27-3,931.50

Finding the Fourth Proportional to 7,075.11, 9,764.27 and 3,931.50

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Solution

The fourth proportional to 7,075.11, 9,764.27 and 3,931.50 is: 5,425.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.11 : 9,764.27 = 3,931.50 : x
  2. Step 2: Convert to fraction form
    7,075.11/9,764.27 = 3,931.50/x
  3. Step 3: Cross multiply
    7,075.11x = 9,764.27 × 3,931.50
  4. Step 4: Simplify right side
    7,075.11x = 38,388,207.85
  5. Step 5: Solve for x
    x = 38,388,207.85/7,075.11
  6. Step 6: Final answer
    x = 5,425.81

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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.