Home / 3,508.80-4,842.09-1,936.98

Finding the Fourth Proportional to 3,508.80, 4,842.09 and 1,936.98

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Solution

The fourth proportional to 3,508.80, 4,842.09 and 1,936.98 is: 2,673.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508.80 : 4,842.09 = 1,936.98 : x
  2. Step 2: Convert to fraction form
    3,508.80/4,842.09 = 1,936.98/x
  3. Step 3: Cross multiply
    3,508.80x = 4,842.09 × 1,936.98
  4. Step 4: Simplify right side
    3,508.80x = 9,379,031.49
  5. Step 5: Solve for x
    x = 9,379,031.49/3,508.80
  6. Step 6: Final answer
    x = 2,673.00

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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.