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Finding the Fourth Proportional to 1,365.57, 1,884.48 and 1,254

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Solution

The fourth proportional to 1,365.57, 1,884.48 and 1,254 is: 1,730.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365.57 : 1,884.48 = 1,254 : x
  2. Step 2: Convert to fraction form
    1,365.57/1,884.48 = 1,254/x
  3. Step 3: Cross multiply
    1,365.57x = 1,884.48 × 1,254
  4. Step 4: Simplify right side
    1,365.57x = 2,363,137.92
  5. Step 5: Solve for x
    x = 2,363,137.92/1,365.57
  6. Step 6: Final answer
    x = 1,730.51

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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.