Home / 4,020-5,540.04-2,898.96

Finding the Fourth Proportional to 4,020, 5,540.04 and 2,898.96

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Solution

The fourth proportional to 4,020, 5,540.04 and 2,898.96 is: 3,995.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,020 : 5,540.04 = 2,898.96 : x
  2. Step 2: Convert to fraction form
    4,020/5,540.04 = 2,898.96/x
  3. Step 3: Cross multiply
    4,020x = 5,540.04 × 2,898.96
  4. Step 4: Simplify right side
    4,020x = 16,060,354.36
  5. Step 5: Solve for x
    x = 16,060,354.36/4,020
  6. Step 6: Final answer
    x = 3,995.11

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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.