Home / 2,825.04-3,898.26-1,645.86

Finding the Fourth Proportional to 2,825.04, 3,898.26 and 1,645.86

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Solution

The fourth proportional to 2,825.04, 3,898.26 and 1,645.86 is: 2,271.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.04 : 3,898.26 = 1,645.86 : x
  2. Step 2: Convert to fraction form
    2,825.04/3,898.26 = 1,645.86/x
  3. Step 3: Cross multiply
    2,825.04x = 3,898.26 × 1,645.86
  4. Step 4: Simplify right side
    2,825.04x = 6,415,990.20
  5. Step 5: Solve for x
    x = 6,415,990.20/2,825.04
  6. Step 6: Final answer
    x = 2,271.11

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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.