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Finding the Fourth Proportional to 1,518.43, 2,095.47 and 889.36

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Solution

The fourth proportional to 1,518.43, 2,095.47 and 889.36 is: 1,227.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.43 : 2,095.47 = 889.36 : x
  2. Step 2: Convert to fraction form
    1,518.43/2,095.47 = 889.36/x
  3. Step 3: Cross multiply
    1,518.43x = 2,095.47 × 889.36
  4. Step 4: Simplify right side
    1,518.43x = 1,863,627.20
  5. Step 5: Solve for x
    x = 1,863,627.20/1,518.43
  6. Step 6: Final answer
    x = 1,227.34

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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.