Home / 7,238.69-9,989.87-4,052.28

Finding the Fourth Proportional to 7,238.69, 9,989.87 and 4,052.28

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Solution

The fourth proportional to 7,238.69, 9,989.87 and 4,052.28 is: 5,592.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.69 : 9,989.87 = 4,052.28 : x
  2. Step 2: Convert to fraction form
    7,238.69/9,989.87 = 4,052.28/x
  3. Step 3: Cross multiply
    7,238.69x = 9,989.87 × 4,052.28
  4. Step 4: Simplify right side
    7,238.69x = 40,481,730.14
  5. Step 5: Solve for x
    x = 40,481,730.14/7,238.69
  6. Step 6: Final answer
    x = 5,592.41

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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.