Home / 5,091.98-7,637.60-1,581.90

Finding the Fourth Proportional to 5,091.98, 7,637.60 and 1,581.90

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Solution

The fourth proportional to 5,091.98, 7,637.60 and 1,581.90 is: 2,372.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.98 : 7,637.60 = 1,581.90 : x
  2. Step 2: Convert to fraction form
    5,091.98/7,637.60 = 1,581.90/x
  3. Step 3: Cross multiply
    5,091.98x = 7,637.60 × 1,581.90
  4. Step 4: Simplify right side
    5,091.98x = 12,081,911.53
  5. Step 5: Solve for x
    x = 12,081,911.53/5,091.98
  6. Step 6: Final answer
    x = 2,372.74

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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.