Home / 3,637.86-5,455.63-1,172.13

Finding the Fourth Proportional to 3,637.86, 5,455.63 and 1,172.13

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Solution

The fourth proportional to 3,637.86, 5,455.63 and 1,172.13 is: 1,757.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,637.86 : 5,455.63 = 1,172.13 : x
  2. Step 2: Convert to fraction form
    3,637.86/5,455.63 = 1,172.13/x
  3. Step 3: Cross multiply
    3,637.86x = 5,455.63 × 1,172.13
  4. Step 4: Simplify right side
    3,637.86x = 6,394,707.59
  5. Step 5: Solve for x
    x = 6,394,707.59/3,637.86
  6. Step 6: Final answer
    x = 1,757.82

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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.