Home / 3,118.13-4,302.98-1,701.78

Finding the Fourth Proportional to 3,118.13, 4,302.98 and 1,701.78

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Solution

The fourth proportional to 3,118.13, 4,302.98 and 1,701.78 is: 2,348.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.13 : 4,302.98 = 1,701.78 : x
  2. Step 2: Convert to fraction form
    3,118.13/4,302.98 = 1,701.78/x
  3. Step 3: Cross multiply
    3,118.13x = 4,302.98 × 1,701.78
  4. Step 4: Simplify right side
    3,118.13x = 7,322,725.30
  5. Step 5: Solve for x
    x = 7,322,725.30/3,118.13
  6. Step 6: Final answer
    x = 2,348.43

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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.