Home / 4,020-5,549.88-3,133.92

Finding the Fourth Proportional to 4,020, 5,549.88 and 3,133.92

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Solution

The fourth proportional to 4,020, 5,549.88 and 3,133.92 is: 4,326.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,020 : 5,549.88 = 3,133.92 : x
  2. Step 2: Convert to fraction form
    4,020/5,549.88 = 3,133.92/x
  3. Step 3: Cross multiply
    4,020x = 5,549.88 × 3,133.92
  4. Step 4: Simplify right side
    4,020x = 17,392,879.93
  5. Step 5: Solve for x
    x = 17,392,879.93/4,020
  6. Step 6: Final answer
    x = 4,326.59

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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.