Home / 2,972.50-4,103.91-1,910.74

Finding the Fourth Proportional to 2,972.50, 4,103.91 and 1,910.74

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Solution

The fourth proportional to 2,972.50, 4,103.91 and 1,910.74 is: 2,638.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.50 : 4,103.91 = 1,910.74 : x
  2. Step 2: Convert to fraction form
    2,972.50/4,103.91 = 1,910.74/x
  3. Step 3: Cross multiply
    2,972.50x = 4,103.91 × 1,910.74
  4. Step 4: Simplify right side
    2,972.50x = 7,841,504.99
  5. Step 5: Solve for x
    x = 7,841,504.99/2,972.50
  6. Step 6: Final answer
    x = 2,638.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.