Home / 2,906.90-4,362.13-1,151.60

Finding the Fourth Proportional to 2,906.90, 4,362.13 and 1,151.60

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Solution

The fourth proportional to 2,906.90, 4,362.13 and 1,151.60 is: 1,728.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.90 : 4,362.13 = 1,151.60 : x
  2. Step 2: Convert to fraction form
    2,906.90/4,362.13 = 1,151.60/x
  3. Step 3: Cross multiply
    2,906.90x = 4,362.13 × 1,151.60
  4. Step 4: Simplify right side
    2,906.90x = 5,023,428.91
  5. Step 5: Solve for x
    x = 5,023,428.91/2,906.90
  6. Step 6: Final answer
    x = 1,728.11

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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.