Home / 3,104.40-4,282.80-1,985.04

Finding the Fourth Proportional to 3,104.40, 4,282.80 and 1,985.04

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Solution

The fourth proportional to 3,104.40, 4,282.80 and 1,985.04 is: 2,738.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,104.40 : 4,282.80 = 1,985.04 : x
  2. Step 2: Convert to fraction form
    3,104.40/4,282.80 = 1,985.04/x
  3. Step 3: Cross multiply
    3,104.40x = 4,282.80 × 1,985.04
  4. Step 4: Simplify right side
    3,104.40x = 8,501,529.31
  5. Step 5: Solve for x
    x = 8,501,529.31/3,104.40
  6. Step 6: Final answer
    x = 2,738.54

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Similar ratio
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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.