Home / 2,824.48-3,898.29-1,645.39

Finding the Fourth Proportional to 2,824.48, 3,898.29 and 1,645.39

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Solution

The fourth proportional to 2,824.48, 3,898.29 and 1,645.39 is: 2,270.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,824.48 : 3,898.29 = 1,645.39 : x
  2. Step 2: Convert to fraction form
    2,824.48/3,898.29 = 1,645.39/x
  3. Step 3: Cross multiply
    2,824.48x = 3,898.29 × 1,645.39
  4. Step 4: Simplify right side
    2,824.48x = 6,414,207.38
  5. Step 5: Solve for x
    x = 6,414,207.38/2,824.48
  6. Step 6: Final answer
    x = 2,270.93

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1.5x scale

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.