Home / 3,160.50-4,741.14-1,405.50

Finding the Fourth Proportional to 3,160.50, 4,741.14 and 1,405.50

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Solution

The fourth proportional to 3,160.50, 4,741.14 and 1,405.50 is: 2,108.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.50 : 4,741.14 = 1,405.50 : x
  2. Step 2: Convert to fraction form
    3,160.50/4,741.14 = 1,405.50/x
  3. Step 3: Cross multiply
    3,160.50x = 4,741.14 × 1,405.50
  4. Step 4: Simplify right side
    3,160.50x = 6,663,672.27
  5. Step 5: Solve for x
    x = 6,663,672.27/3,160.50
  6. Step 6: Final answer
    x = 2,108.42

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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.