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Finding the Fourth Proportional to 3,442.66, 5,164.02 and 845.60

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Solution

The fourth proportional to 3,442.66, 5,164.02 and 845.60 is: 1,268.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,442.66 : 5,164.02 = 845.60 : x
  2. Step 2: Convert to fraction form
    3,442.66/5,164.02 = 845.60/x
  3. Step 3: Cross multiply
    3,442.66x = 5,164.02 × 845.60
  4. Step 4: Simplify right side
    3,442.66x = 4,366,669.49
  5. Step 5: Solve for x
    x = 4,366,669.49/3,442.66
  6. Step 6: Final answer
    x = 1,268.40

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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.