Home / 5,637.12-8,454.32-2,127.48

Finding the Fourth Proportional to 5,637.12, 8,454.32 and 2,127.48

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Solution

The fourth proportional to 5,637.12, 8,454.32 and 2,127.48 is: 3,190.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637.12 : 8,454.32 = 2,127.48 : x
  2. Step 2: Convert to fraction form
    5,637.12/8,454.32 = 2,127.48/x
  3. Step 3: Cross multiply
    5,637.12x = 8,454.32 × 2,127.48
  4. Step 4: Simplify right side
    5,637.12x = 17,986,396.71
  5. Step 5: Solve for x
    x = 17,986,396.71/5,637.12
  6. Step 6: Final answer
    x = 3,190.71

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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.