Home / 5,091.57-7,634.79-1,804.20

Finding the Fourth Proportional to 5,091.57, 7,634.79 and 1,804.20

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Solution

The fourth proportional to 5,091.57, 7,634.79 and 1,804.20 is: 2,705.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.57 : 7,634.79 = 1,804.20 : x
  2. Step 2: Convert to fraction form
    5,091.57/7,634.79 = 1,804.20/x
  3. Step 3: Cross multiply
    5,091.57x = 7,634.79 × 1,804.20
  4. Step 4: Simplify right side
    5,091.57x = 13,774,688.12
  5. Step 5: Solve for x
    x = 13,774,688.12/5,091.57
  6. Step 6: Final answer
    x = 2,705.39

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1.5x scale

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.