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Finding the Fourth Proportional to 3,399.60, 5,088.60 and 2,427.60

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Solution

The fourth proportional to 3,399.60, 5,088.60 and 2,427.60 is: 3,633.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.60 : 5,088.60 = 2,427.60 : x
  2. Step 2: Convert to fraction form
    3,399.60/5,088.60 = 2,427.60/x
  3. Step 3: Cross multiply
    3,399.60x = 5,088.60 × 2,427.60
  4. Step 4: Simplify right side
    3,399.60x = 12,353,085.36
  5. Step 5: Solve for x
    x = 12,353,085.36/3,399.60
  6. Step 6: Final answer
    x = 3,633.69

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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.