Home / 3,698.30-5,103.45-2,165.69

Finding the Fourth Proportional to 3,698.30, 5,103.45 and 2,165.69

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Solution

The fourth proportional to 3,698.30, 5,103.45 and 2,165.69 is: 2,988.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.30 : 5,103.45 = 2,165.69 : x
  2. Step 2: Convert to fraction form
    3,698.30/5,103.45 = 2,165.69/x
  3. Step 3: Cross multiply
    3,698.30x = 5,103.45 × 2,165.69
  4. Step 4: Simplify right side
    3,698.30x = 11,052,490.63
  5. Step 5: Solve for x
    x = 11,052,490.63/3,698.30
  6. Step 6: Final answer
    x = 2,988.53

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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.