Home / 1,505.20-2,258.16-889.42

Finding the Fourth Proportional to 1,505.20, 2,258.16 and 889.42

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Solution

The fourth proportional to 1,505.20, 2,258.16 and 889.42 is: 1,334.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505.20 : 2,258.16 = 889.42 : x
  2. Step 2: Convert to fraction form
    1,505.20/2,258.16 = 889.42/x
  3. Step 3: Cross multiply
    1,505.20x = 2,258.16 × 889.42
  4. Step 4: Simplify right side
    1,505.20x = 2,008,452.67
  5. Step 5: Solve for x
    x = 2,008,452.67/1,505.20
  6. Step 6: Final answer
    x = 1,334.34

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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.