Home / 2,157.04-3,233.16-1,415.80

Finding the Fourth Proportional to 2,157.04, 3,233.16 and 1,415.80

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Solution

The fourth proportional to 2,157.04, 3,233.16 and 1,415.80 is: 2,122.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.04 : 3,233.16 = 1,415.80 : x
  2. Step 2: Convert to fraction form
    2,157.04/3,233.16 = 1,415.80/x
  3. Step 3: Cross multiply
    2,157.04x = 3,233.16 × 1,415.80
  4. Step 4: Simplify right side
    2,157.04x = 4,577,507.93
  5. Step 5: Solve for x
    x = 4,577,507.93/2,157.04
  6. Step 6: Final answer
    x = 2,122.12

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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.