Home / 3,890.63-5,827.70-2,717.85

Finding the Fourth Proportional to 3,890.63, 5,827.70 and 2,717.85

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Solution

The fourth proportional to 3,890.63, 5,827.70 and 2,717.85 is: 4,071.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.63 : 5,827.70 = 2,717.85 : x
  2. Step 2: Convert to fraction form
    3,890.63/5,827.70 = 2,717.85/x
  3. Step 3: Cross multiply
    3,890.63x = 5,827.70 × 2,717.85
  4. Step 4: Simplify right side
    3,890.63x = 15,838,827.81
  5. Step 5: Solve for x
    x = 15,838,827.81/3,890.63
  6. Step 6: Final answer
    x = 4,071.02

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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.