Home / 2,150.08-2,967.12-1,218.64

Finding the Fourth Proportional to 2,150.08, 2,967.12 and 1,218.64

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Solution

The fourth proportional to 2,150.08, 2,967.12 and 1,218.64 is: 1,681.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,150.08 : 2,967.12 = 1,218.64 : x
  2. Step 2: Convert to fraction form
    2,150.08/2,967.12 = 1,218.64/x
  3. Step 3: Cross multiply
    2,150.08x = 2,967.12 × 1,218.64
  4. Step 4: Simplify right side
    2,150.08x = 3,615,851.12
  5. Step 5: Solve for x
    x = 3,615,851.12/2,150.08
  6. Step 6: Final answer
    x = 1,681.73

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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.