Home / 3,137.85-4,706.63-1,288.51

Finding the Fourth Proportional to 3,137.85, 4,706.63 and 1,288.51

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Solution

The fourth proportional to 3,137.85, 4,706.63 and 1,288.51 is: 1,932.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.85 : 4,706.63 = 1,288.51 : x
  2. Step 2: Convert to fraction form
    3,137.85/4,706.63 = 1,288.51/x
  3. Step 3: Cross multiply
    3,137.85x = 4,706.63 × 1,288.51
  4. Step 4: Simplify right side
    3,137.85x = 6,064,539.82
  5. Step 5: Solve for x
    x = 6,064,539.82/3,137.85
  6. Step 6: Final answer
    x = 1,932.71

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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.