Home / 6,756.36-10,134.90-2,139

Finding the Fourth Proportional to 6,756.36, 10,134.90 and 2,139

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Solution

The fourth proportional to 6,756.36, 10,134.90 and 2,139 is: 3,208.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,756.36 : 10,134.90 = 2,139 : x
  2. Step 2: Convert to fraction form
    6,756.36/10,134.90 = 2,139/x
  3. Step 3: Cross multiply
    6,756.36x = 10,134.90 × 2,139
  4. Step 4: Simplify right side
    6,756.36x = 21,678,551.10
  5. Step 5: Solve for x
    x = 21,678,551.10/6,756.36
  6. Step 6: Final answer
    x = 3,208.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.