Home / 7,079.43-9,768.69-3,935.01

Finding the Fourth Proportional to 7,079.43, 9,768.69 and 3,935.01

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Solution

The fourth proportional to 7,079.43, 9,768.69 and 3,935.01 is: 5,429.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.43 : 9,768.69 = 3,935.01 : x
  2. Step 2: Convert to fraction form
    7,079.43/9,768.69 = 3,935.01/x
  3. Step 3: Cross multiply
    7,079.43x = 9,768.69 × 3,935.01
  4. Step 4: Simplify right side
    7,079.43x = 38,439,892.84
  5. Step 5: Solve for x
    x = 38,439,892.84/7,079.43
  6. Step 6: Final answer
    x = 5,429.80

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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.