Home / 3,207.72-4,426.74-1,810.80

Finding the Fourth Proportional to 3,207.72, 4,426.74 and 1,810.80

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Solution

The fourth proportional to 3,207.72, 4,426.74 and 1,810.80 is: 2,498.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.72 : 4,426.74 = 1,810.80 : x
  2. Step 2: Convert to fraction form
    3,207.72/4,426.74 = 1,810.80/x
  3. Step 3: Cross multiply
    3,207.72x = 4,426.74 × 1,810.80
  4. Step 4: Simplify right side
    3,207.72x = 8,015,940.79
  5. Step 5: Solve for x
    x = 8,015,940.79/3,207.72
  6. Step 6: Final answer
    x = 2,498.95

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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.