Home / 3,421.35-4,721.45-2,076.50

Finding the Fourth Proportional to 3,421.35, 4,721.45 and 2,076.50

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Solution

The fourth proportional to 3,421.35, 4,721.45 and 2,076.50 is: 2,865.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.35 : 4,721.45 = 2,076.50 : x
  2. Step 2: Convert to fraction form
    3,421.35/4,721.45 = 2,076.50/x
  3. Step 3: Cross multiply
    3,421.35x = 4,721.45 × 2,076.50
  4. Step 4: Simplify right side
    3,421.35x = 9,804,090.93
  5. Step 5: Solve for x
    x = 9,804,090.93/3,421.35
  6. Step 6: Final answer
    x = 2,865.56

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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.