Home / 4,789.50-7,184.64-1,326.78

Finding the Fourth Proportional to 4,789.50, 7,184.64 and 1,326.78

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Solution

The fourth proportional to 4,789.50, 7,184.64 and 1,326.78 is: 1,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.50 : 7,184.64 = 1,326.78 : x
  2. Step 2: Convert to fraction form
    4,789.50/7,184.64 = 1,326.78/x
  3. Step 3: Cross multiply
    4,789.50x = 7,184.64 × 1,326.78
  4. Step 4: Simplify right side
    4,789.50x = 9,532,436.66
  5. Step 5: Solve for x
    x = 9,532,436.66/4,789.50
  6. Step 6: Final answer
    x = 1,990.28

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1.5x scale

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.