Home / 3,637.68-5,003.28-3,157.20

Finding the Fourth Proportional to 3,637.68, 5,003.28 and 3,157.20

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Solution

The fourth proportional to 3,637.68, 5,003.28 and 3,157.20 is: 4,342.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,637.68 : 5,003.28 = 3,157.20 : x
  2. Step 2: Convert to fraction form
    3,637.68/5,003.28 = 3,157.20/x
  3. Step 3: Cross multiply
    3,637.68x = 5,003.28 × 3,157.20
  4. Step 4: Simplify right side
    3,637.68x = 15,796,355.62
  5. Step 5: Solve for x
    x = 15,796,355.62/3,637.68
  6. Step 6: Final answer
    x = 4,342.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.