Home / 1,612.54-2,420.16-1,151.44

Finding the Fourth Proportional to 1,612.54, 2,420.16 and 1,151.44

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Solution

The fourth proportional to 1,612.54, 2,420.16 and 1,151.44 is: 1,728.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.54 : 2,420.16 = 1,151.44 : x
  2. Step 2: Convert to fraction form
    1,612.54/2,420.16 = 1,151.44/x
  3. Step 3: Cross multiply
    1,612.54x = 2,420.16 × 1,151.44
  4. Step 4: Simplify right side
    1,612.54x = 2,786,669.03
  5. Step 5: Solve for x
    x = 2,786,669.03/1,612.54
  6. Step 6: Final answer
    x = 1,728.12

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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.