Home / 3,207.75-4,426.80-1,810.50

Finding the Fourth Proportional to 3,207.75, 4,426.80 and 1,810.50

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Solution

The fourth proportional to 3,207.75, 4,426.80 and 1,810.50 is: 2,498.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.75 : 4,426.80 = 1,810.50 : x
  2. Step 2: Convert to fraction form
    3,207.75/4,426.80 = 1,810.50/x
  3. Step 3: Cross multiply
    3,207.75x = 4,426.80 × 1,810.50
  4. Step 4: Simplify right side
    3,207.75x = 8,014,721.40
  5. Step 5: Solve for x
    x = 8,014,721.40/3,207.75
  6. Step 6: Final answer
    x = 2,498.55

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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.