Home / 3,261.90-4,501.78-1,864.64

Finding the Fourth Proportional to 3,261.90, 4,501.78 and 1,864.64

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Solution

The fourth proportional to 3,261.90, 4,501.78 and 1,864.64 is: 2,573.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.90 : 4,501.78 = 1,864.64 : x
  2. Step 2: Convert to fraction form
    3,261.90/4,501.78 = 1,864.64/x
  3. Step 3: Cross multiply
    3,261.90x = 4,501.78 × 1,864.64
  4. Step 4: Simplify right side
    3,261.90x = 8,394,199.06
  5. Step 5: Solve for x
    x = 8,394,199.06/3,261.90
  6. Step 6: Final answer
    x = 2,573.41

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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.