Home / 3,782.19-5,219.55-2,103.63

Finding the Fourth Proportional to 3,782.19, 5,219.55 and 2,103.63

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Solution

The fourth proportional to 3,782.19, 5,219.55 and 2,103.63 is: 2,903.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.19 : 5,219.55 = 2,103.63 : x
  2. Step 2: Convert to fraction form
    3,782.19/5,219.55 = 2,103.63/x
  3. Step 3: Cross multiply
    3,782.19x = 5,219.55 × 2,103.63
  4. Step 4: Simplify right side
    3,782.19x = 10,980,001.97
  5. Step 5: Solve for x
    x = 10,980,001.97/3,782.19
  6. Step 6: Final answer
    x = 2,903.08

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Half scale
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Double scale
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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.