Home / 2,144.48-3,216.74-1,171.40

Finding the Fourth Proportional to 2,144.48, 3,216.74 and 1,171.40

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Solution

The fourth proportional to 2,144.48, 3,216.74 and 1,171.40 is: 1,757.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.48 : 3,216.74 = 1,171.40 : x
  2. Step 2: Convert to fraction form
    2,144.48/3,216.74 = 1,171.40/x
  3. Step 3: Cross multiply
    2,144.48x = 3,216.74 × 1,171.40
  4. Step 4: Simplify right side
    2,144.48x = 3,768,089.24
  5. Step 5: Solve for x
    x = 3,768,089.24/2,144.48
  6. Step 6: Final answer
    x = 1,757.11

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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.