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Finding the Fourth Proportional to 4,868.35, 7,305.76 and 1,790.35

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Solution

The fourth proportional to 4,868.35, 7,305.76 and 1,790.35 is: 2,686.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,868.35 : 7,305.76 = 1,790.35 : x
  2. Step 2: Convert to fraction form
    4,868.35/7,305.76 = 1,790.35/x
  3. Step 3: Cross multiply
    4,868.35x = 7,305.76 × 1,790.35
  4. Step 4: Simplify right side
    4,868.35x = 13,079,844.68
  5. Step 5: Solve for x
    x = 13,079,844.68/4,868.35
  6. Step 6: Final answer
    x = 2,686.71

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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.