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Finding the Fourth Proportional to 3,411.60, 5,106.60 and 2,439.60

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Solution

The fourth proportional to 3,411.60, 5,106.60 and 2,439.60 is: 3,651.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.60 : 5,106.60 = 2,439.60 : x
  2. Step 2: Convert to fraction form
    3,411.60/5,106.60 = 2,439.60/x
  3. Step 3: Cross multiply
    3,411.60x = 5,106.60 × 2,439.60
  4. Step 4: Simplify right side
    3,411.60x = 12,458,061.36
  5. Step 5: Solve for x
    x = 12,458,061.36/3,411.60
  6. Step 6: Final answer
    x = 3,651.68

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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.