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Finding the Fourth Proportional to 4,785.86, 7,178.79 and 1,498.97

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Solution

The fourth proportional to 4,785.86, 7,178.79 and 1,498.97 is: 2,248.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.86 : 7,178.79 = 1,498.97 : x
  2. Step 2: Convert to fraction form
    4,785.86/7,178.79 = 1,498.97/x
  3. Step 3: Cross multiply
    4,785.86x = 7,178.79 × 1,498.97
  4. Step 4: Simplify right side
    4,785.86x = 10,760,790.85
  5. Step 5: Solve for x
    x = 10,760,790.85/4,785.86
  6. Step 6: Final answer
    x = 2,248.46

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Similar ratio
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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.