Home / 1,354.12-2,021.04-1,177.64

Finding the Fourth Proportional to 1,354.12, 2,021.04 and 1,177.64

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Solution

The fourth proportional to 1,354.12, 2,021.04 and 1,177.64 is: 1,757.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.12 : 2,021.04 = 1,177.64 : x
  2. Step 2: Convert to fraction form
    1,354.12/2,021.04 = 1,177.64/x
  3. Step 3: Cross multiply
    1,354.12x = 2,021.04 × 1,177.64
  4. Step 4: Simplify right side
    1,354.12x = 2,380,057.55
  5. Step 5: Solve for x
    x = 2,380,057.55/1,354.12
  6. Step 6: Final answer
    x = 1,757.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.