Home / 2,250.60-3,107.15-1,505.81

Finding the Fourth Proportional to 2,250.60, 3,107.15 and 1,505.81

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Solution

The fourth proportional to 2,250.60, 3,107.15 and 1,505.81 is: 2,078.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,250.60 : 3,107.15 = 1,505.81 : x
  2. Step 2: Convert to fraction form
    2,250.60/3,107.15 = 1,505.81/x
  3. Step 3: Cross multiply
    2,250.60x = 3,107.15 × 1,505.81
  4. Step 4: Simplify right side
    2,250.60x = 4,678,754.48
  5. Step 5: Solve for x
    x = 4,678,754.48/2,250.60
  6. Step 6: Final answer
    x = 2,078.89

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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.