Home / 5,007.80-7,505.12-3,685.36

Finding the Fourth Proportional to 5,007.80, 7,505.12 and 3,685.36

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Solution

The fourth proportional to 5,007.80, 7,505.12 and 3,685.36 is: 5,523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.80 : 7,505.12 = 3,685.36 : x
  2. Step 2: Convert to fraction form
    5,007.80/7,505.12 = 3,685.36/x
  3. Step 3: Cross multiply
    5,007.80x = 7,505.12 × 3,685.36
  4. Step 4: Simplify right side
    5,007.80x = 27,659,059.49
  5. Step 5: Solve for x
    x = 27,659,059.49/5,007.80
  6. Step 6: Final answer
    x = 5,523.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.