Home / 3,156.33-4,731.80-1,209.93

Finding the Fourth Proportional to 3,156.33, 4,731.80 and 1,209.93

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Solution

The fourth proportional to 3,156.33, 4,731.80 and 1,209.93 is: 1,813.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.33 : 4,731.80 = 1,209.93 : x
  2. Step 2: Convert to fraction form
    3,156.33/4,731.80 = 1,209.93/x
  3. Step 3: Cross multiply
    3,156.33x = 4,731.80 × 1,209.93
  4. Step 4: Simplify right side
    3,156.33x = 5,725,140.72
  5. Step 5: Solve for x
    x = 5,725,140.72/3,156.33
  6. Step 6: Final answer
    x = 1,813.86

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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.