Home / 7,238.25-9,988.83-4,095.09

Finding the Fourth Proportional to 7,238.25, 9,988.83 and 4,095.09

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Solution

The fourth proportional to 7,238.25, 9,988.83 and 4,095.09 is: 5,651.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.25 : 9,988.83 = 4,095.09 : x
  2. Step 2: Convert to fraction form
    7,238.25/9,988.83 = 4,095.09/x
  3. Step 3: Cross multiply
    7,238.25x = 9,988.83 × 4,095.09
  4. Step 4: Simplify right side
    7,238.25x = 40,905,157.84
  5. Step 5: Solve for x
    x = 40,905,157.84/7,238.25
  6. Step 6: Final answer
    x = 5,651.25

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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.