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Finding the Fourth Proportional to 7,096.40, 9,791.88 and 3,952

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Solution

The fourth proportional to 7,096.40, 9,791.88 and 3,952 is: 5,453.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,096.40 : 9,791.88 = 3,952 : x
  2. Step 2: Convert to fraction form
    7,096.40/9,791.88 = 3,952/x
  3. Step 3: Cross multiply
    7,096.40x = 9,791.88 × 3,952
  4. Step 4: Simplify right side
    7,096.40x = 38,697,509.76
  5. Step 5: Solve for x
    x = 38,697,509.76/7,096.40
  6. Step 6: Final answer
    x = 5,453.12

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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.