Home / 3,309.80-4,567.59-1,817.78

Finding the Fourth Proportional to 3,309.80, 4,567.59 and 1,817.78

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Solution

The fourth proportional to 3,309.80, 4,567.59 and 1,817.78 is: 2,508.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309.80 : 4,567.59 = 1,817.78 : x
  2. Step 2: Convert to fraction form
    3,309.80/4,567.59 = 1,817.78/x
  3. Step 3: Cross multiply
    3,309.80x = 4,567.59 × 1,817.78
  4. Step 4: Simplify right side
    3,309.80x = 8,302,850.91
  5. Step 5: Solve for x
    x = 8,302,850.91/3,309.80
  6. Step 6: Final answer
    x = 2,508.57

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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.