Home / 2,761.32-4,138.08-1,529.28

Finding the Fourth Proportional to 2,761.32, 4,138.08 and 1,529.28

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Solution

The fourth proportional to 2,761.32, 4,138.08 and 1,529.28 is: 2,291.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.32 : 4,138.08 = 1,529.28 : x
  2. Step 2: Convert to fraction form
    2,761.32/4,138.08 = 1,529.28/x
  3. Step 3: Cross multiply
    2,761.32x = 4,138.08 × 1,529.28
  4. Step 4: Simplify right side
    2,761.32x = 6,328,282.98
  5. Step 5: Solve for x
    x = 6,328,282.98/2,761.32
  6. Step 6: Final answer
    x = 2,291.76

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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.