Home / 2,789.34-4,178.60-1,553

Finding the Fourth Proportional to 2,789.34, 4,178.60 and 1,553

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Solution

The fourth proportional to 2,789.34, 4,178.60 and 1,553 is: 2,326.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.34 : 4,178.60 = 1,553 : x
  2. Step 2: Convert to fraction form
    2,789.34/4,178.60 = 1,553/x
  3. Step 3: Cross multiply
    2,789.34x = 4,178.60 × 1,553
  4. Step 4: Simplify right side
    2,789.34x = 6,489,365.80
  5. Step 5: Solve for x
    x = 6,489,365.80/2,789.34
  6. Step 6: Final answer
    x = 2,326.49

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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.