Home / 5,103.30-7,651.35-1,982.10

Finding the Fourth Proportional to 5,103.30, 7,651.35 and 1,982.10

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Solution

The fourth proportional to 5,103.30, 7,651.35 and 1,982.10 is: 2,971.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.30 : 7,651.35 = 1,982.10 : x
  2. Step 2: Convert to fraction form
    5,103.30/7,651.35 = 1,982.10/x
  3. Step 3: Cross multiply
    5,103.30x = 7,651.35 × 1,982.10
  4. Step 4: Simplify right side
    5,103.30x = 15,165,740.84
  5. Step 5: Solve for x
    x = 15,165,740.84/5,103.30
  6. Step 6: Final answer
    x = 2,971.75

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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.