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Finding the Fourth Proportional to 2,615.70, 3,927.60 and 2,000.10

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Solution

The fourth proportional to 2,615.70, 3,927.60 and 2,000.10 is: 3,003.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.70 : 3,927.60 = 2,000.10 : x
  2. Step 2: Convert to fraction form
    2,615.70/3,927.60 = 2,000.10/x
  3. Step 3: Cross multiply
    2,615.70x = 3,927.60 × 2,000.10
  4. Step 4: Simplify right side
    2,615.70x = 7,855,592.76
  5. Step 5: Solve for x
    x = 7,855,592.76/2,615.70
  6. Step 6: Final answer
    x = 3,003.25

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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.