Home / 2,951.36-4,424.56-1,221.20

Finding the Fourth Proportional to 2,951.36, 4,424.56 and 1,221.20

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Solution

The fourth proportional to 2,951.36, 4,424.56 and 1,221.20 is: 1,830.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.36 : 4,424.56 = 1,221.20 : x
  2. Step 2: Convert to fraction form
    2,951.36/4,424.56 = 1,221.20/x
  3. Step 3: Cross multiply
    2,951.36x = 4,424.56 × 1,221.20
  4. Step 4: Simplify right side
    2,951.36x = 5,403,272.67
  5. Step 5: Solve for x
    x = 5,403,272.67/2,951.36
  6. Step 6: Final answer
    x = 1,830.77

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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.