Home / 5,431.14-7,505.55-4,420.89

Finding the Fourth Proportional to 5,431.14, 7,505.55 and 4,420.89

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Solution

The fourth proportional to 5,431.14, 7,505.55 and 4,420.89 is: 6,109.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.14 : 7,505.55 = 4,420.89 : x
  2. Step 2: Convert to fraction form
    5,431.14/7,505.55 = 4,420.89/x
  3. Step 3: Cross multiply
    5,431.14x = 7,505.55 × 4,420.89
  4. Step 4: Simplify right side
    5,431.14x = 33,181,210.94
  5. Step 5: Solve for x
    x = 33,181,210.94/5,431.14
  6. Step 6: Final answer
    x = 6,109.44

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Half scale
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Double scale
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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.