Home / 3,435.23-5,171.42-3,129.05

Finding the Fourth Proportional to 3,435.23, 5,171.42 and 3,129.05

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Solution

The fourth proportional to 3,435.23, 5,171.42 and 3,129.05 is: 4,710.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.23 : 5,171.42 = 3,129.05 : x
  2. Step 2: Convert to fraction form
    3,435.23/5,171.42 = 3,129.05/x
  3. Step 3: Cross multiply
    3,435.23x = 5,171.42 × 3,129.05
  4. Step 4: Simplify right side
    3,435.23x = 16,181,590.25
  5. Step 5: Solve for x
    x = 16,181,590.25/3,435.23
  6. Step 6: Final answer
    x = 4,710.49

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.