Home / 2,076.30-3,115.14-760.46

Finding the Fourth Proportional to 2,076.30, 3,115.14 and 760.46

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Solution

The fourth proportional to 2,076.30, 3,115.14 and 760.46 is: 1,140.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076.30 : 3,115.14 = 760.46 : x
  2. Step 2: Convert to fraction form
    2,076.30/3,115.14 = 760.46/x
  3. Step 3: Cross multiply
    2,076.30x = 3,115.14 × 760.46
  4. Step 4: Simplify right side
    2,076.30x = 2,368,939.36
  5. Step 5: Solve for x
    x = 2,368,939.36/2,076.30
  6. Step 6: Final answer
    x = 1,140.94

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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.