Home / 3,078.30-4,617.48-1,434.36

Finding the Fourth Proportional to 3,078.30, 4,617.48 and 1,434.36

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Solution

The fourth proportional to 3,078.30, 4,617.48 and 1,434.36 is: 2,151.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.30 : 4,617.48 = 1,434.36 : x
  2. Step 2: Convert to fraction form
    3,078.30/4,617.48 = 1,434.36/x
  3. Step 3: Cross multiply
    3,078.30x = 4,617.48 × 1,434.36
  4. Step 4: Simplify right side
    3,078.30x = 6,623,128.61
  5. Step 5: Solve for x
    x = 6,623,128.61/3,078.30
  6. Step 6: Final answer
    x = 2,151.55

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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.