Home / 2,906.80-4,360.08-1,263.28

Finding the Fourth Proportional to 2,906.80, 4,360.08 and 1,263.28

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Solution

The fourth proportional to 2,906.80, 4,360.08 and 1,263.28 is: 1,894.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.80 : 4,360.08 = 1,263.28 : x
  2. Step 2: Convert to fraction form
    2,906.80/4,360.08 = 1,263.28/x
  3. Step 3: Cross multiply
    2,906.80x = 4,360.08 × 1,263.28
  4. Step 4: Simplify right side
    2,906.80x = 5,508,001.86
  5. Step 5: Solve for x
    x = 5,508,001.86/2,906.80
  6. Step 6: Final answer
    x = 1,894.87

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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.