Home / 5,101.79-7,654.50-2,180.32

Finding the Fourth Proportional to 5,101.79, 7,654.50 and 2,180.32

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Solution

The fourth proportional to 5,101.79, 7,654.50 and 2,180.32 is: 3,271.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.79 : 7,654.50 = 2,180.32 : x
  2. Step 2: Convert to fraction form
    5,101.79/7,654.50 = 2,180.32/x
  3. Step 3: Cross multiply
    5,101.79x = 7,654.50 × 2,180.32
  4. Step 4: Simplify right side
    5,101.79x = 16,689,240.30
  5. Step 5: Solve for x
    x = 16,689,240.30/5,101.79
  6. Step 6: Final answer
    x = 3,271.26

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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.