Home / 3,156.71-4,355.96-1,830.50

Finding the Fourth Proportional to 3,156.71, 4,355.96 and 1,830.50

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Solution

The fourth proportional to 3,156.71, 4,355.96 and 1,830.50 is: 2,525.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.71 : 4,355.96 = 1,830.50 : x
  2. Step 2: Convert to fraction form
    3,156.71/4,355.96 = 1,830.50/x
  3. Step 3: Cross multiply
    3,156.71x = 4,355.96 × 1,830.50
  4. Step 4: Simplify right side
    3,156.71x = 7,973,553.85
  5. Step 5: Solve for x
    x = 7,973,553.85/3,156.71
  6. Step 6: Final answer
    x = 2,525.91

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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.