Home / 2,789.64-4,178.62-1,675.52

Finding the Fourth Proportional to 2,789.64, 4,178.62 and 1,675.52

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Solution

The fourth proportional to 2,789.64, 4,178.62 and 1,675.52 is: 2,509.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.64 : 4,178.62 = 1,675.52 : x
  2. Step 2: Convert to fraction form
    2,789.64/4,178.62 = 1,675.52/x
  3. Step 3: Cross multiply
    2,789.64x = 4,178.62 × 1,675.52
  4. Step 4: Simplify right side
    2,789.64x = 7,001,336.30
  5. Step 5: Solve for x
    x = 7,001,336.30/2,789.64
  6. Step 6: Final answer
    x = 2,509.76

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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.