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Finding the Fourth Proportional to 3,459.66, 5,189.74 and 1,705.60

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Solution

The fourth proportional to 3,459.66, 5,189.74 and 1,705.60 is: 2,558.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.66 : 5,189.74 = 1,705.60 : x
  2. Step 2: Convert to fraction form
    3,459.66/5,189.74 = 1,705.60/x
  3. Step 3: Cross multiply
    3,459.66x = 5,189.74 × 1,705.60
  4. Step 4: Simplify right side
    3,459.66x = 8,851,620.54
  5. Step 5: Solve for x
    x = 8,851,620.54/3,459.66
  6. Step 6: Final answer
    x = 2,558.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.