Home / 3,091.50-4,638.53-1,243.92

Finding the Fourth Proportional to 3,091.50, 4,638.53 and 1,243.92

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Solution

The fourth proportional to 3,091.50, 4,638.53 and 1,243.92 is: 1,866.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.50 : 4,638.53 = 1,243.92 : x
  2. Step 2: Convert to fraction form
    3,091.50/4,638.53 = 1,243.92/x
  3. Step 3: Cross multiply
    3,091.50x = 4,638.53 × 1,243.92
  4. Step 4: Simplify right side
    3,091.50x = 5,769,980.74
  5. Step 5: Solve for x
    x = 5,769,980.74/3,091.50
  6. Step 6: Final answer
    x = 1,866.40

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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.