Home / 2,470.05-3,705.66-826.79

Finding the Fourth Proportional to 2,470.05, 3,705.66 and 826.79

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Solution

The fourth proportional to 2,470.05, 3,705.66 and 826.79 is: 1,240.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,470.05 : 3,705.66 = 826.79 : x
  2. Step 2: Convert to fraction form
    2,470.05/3,705.66 = 826.79/x
  3. Step 3: Cross multiply
    2,470.05x = 3,705.66 × 826.79
  4. Step 4: Simplify right side
    2,470.05x = 3,063,784.10
  5. Step 5: Solve for x
    x = 3,063,784.10/2,470.05
  6. Step 6: Final answer
    x = 1,240.37

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1.5x scale

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.