Home / 7,238.82-9,990.54-4,095.66

Finding the Fourth Proportional to 7,238.82, 9,990.54 and 4,095.66

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Solution

The fourth proportional to 7,238.82, 9,990.54 and 4,095.66 is: 5,652.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.82 : 9,990.54 = 4,095.66 : x
  2. Step 2: Convert to fraction form
    7,238.82/9,990.54 = 4,095.66/x
  3. Step 3: Cross multiply
    7,238.82x = 9,990.54 × 4,095.66
  4. Step 4: Simplify right side
    7,238.82x = 40,917,855.06
  5. Step 5: Solve for x
    x = 40,917,855.06/7,238.82
  6. Step 6: Final answer
    x = 5,652.56

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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.