Home / 5,091.14-7,637.80-1,581.07

Finding the Fourth Proportional to 5,091.14, 7,637.80 and 1,581.07

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Solution

The fourth proportional to 5,091.14, 7,637.80 and 1,581.07 is: 2,371.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.14 : 7,637.80 = 1,581.07 : x
  2. Step 2: Convert to fraction form
    5,091.14/7,637.80 = 1,581.07/x
  3. Step 3: Cross multiply
    5,091.14x = 7,637.80 × 1,581.07
  4. Step 4: Simplify right side
    5,091.14x = 12,075,896.45
  5. Step 5: Solve for x
    x = 12,075,896.45/5,091.14
  6. Step 6: Final answer
    x = 2,371.94

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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.