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Finding the Fourth Proportional to 2,679.96, 3,698.28 and 1,500.96

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Solution

The fourth proportional to 2,679.96, 3,698.28 and 1,500.96 is: 2,071.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.96 : 3,698.28 = 1,500.96 : x
  2. Step 2: Convert to fraction form
    2,679.96/3,698.28 = 1,500.96/x
  3. Step 3: Cross multiply
    2,679.96x = 3,698.28 × 1,500.96
  4. Step 4: Simplify right side
    2,679.96x = 5,550,970.35
  5. Step 5: Solve for x
    x = 5,550,970.35/2,679.96
  6. Step 6: Final answer
    x = 2,071.29

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1.5x scale

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.