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Finding the Fourth Proportional to 4,879.98, 7,318.01 and 1,758.88

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Solution

The fourth proportional to 4,879.98, 7,318.01 and 1,758.88 is: 2,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.98 : 7,318.01 = 1,758.88 : x
  2. Step 2: Convert to fraction form
    4,879.98/7,318.01 = 1,758.88/x
  3. Step 3: Cross multiply
    4,879.98x = 7,318.01 × 1,758.88
  4. Step 4: Simplify right side
    4,879.98x = 12,871,514.97
  5. Step 5: Solve for x
    x = 12,871,514.97/4,879.98
  6. Step 6: Final answer
    x = 2,637.62

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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.