Home / 3,129.93-4,317.77-1,996.13

Finding the Fourth Proportional to 3,129.93, 4,317.77 and 1,996.13

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Solution

The fourth proportional to 3,129.93, 4,317.77 and 1,996.13 is: 2,753.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.93 : 4,317.77 = 1,996.13 : x
  2. Step 2: Convert to fraction form
    3,129.93/4,317.77 = 1,996.13/x
  3. Step 3: Cross multiply
    3,129.93x = 4,317.77 × 1,996.13
  4. Step 4: Simplify right side
    3,129.93x = 8,618,830.23
  5. Step 5: Solve for x
    x = 8,618,830.23/3,129.93
  6. Step 6: Final answer
    x = 2,753.68

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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.