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Finding the Fourth Proportional to 1,363.62, 1,880.34 and 1,252.64

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Solution

The fourth proportional to 1,363.62, 1,880.34 and 1,252.64 is: 1,727.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363.62 : 1,880.34 = 1,252.64 : x
  2. Step 2: Convert to fraction form
    1,363.62/1,880.34 = 1,252.64/x
  3. Step 3: Cross multiply
    1,363.62x = 1,880.34 × 1,252.64
  4. Step 4: Simplify right side
    1,363.62x = 2,355,389.10
  5. Step 5: Solve for x
    x = 2,355,389.10/1,363.62
  6. Step 6: Final answer
    x = 1,727.31

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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.