Home / 3,380.64-5,071.02-1,189.56

Finding the Fourth Proportional to 3,380.64, 5,071.02 and 1,189.56

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Solution

The fourth proportional to 3,380.64, 5,071.02 and 1,189.56 is: 1,784.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.64 : 5,071.02 = 1,189.56 : x
  2. Step 2: Convert to fraction form
    3,380.64/5,071.02 = 1,189.56/x
  3. Step 3: Cross multiply
    3,380.64x = 5,071.02 × 1,189.56
  4. Step 4: Simplify right side
    3,380.64x = 6,032,282.55
  5. Step 5: Solve for x
    x = 6,032,282.55/3,380.64
  6. Step 6: Final answer
    x = 1,784.36

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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.