Home / 2,277.20-3,144.68-2,154.48

Finding the Fourth Proportional to 2,277.20, 3,144.68 and 2,154.48

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Solution

The fourth proportional to 2,277.20, 3,144.68 and 2,154.48 is: 2,975.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.20 : 3,144.68 = 2,154.48 : x
  2. Step 2: Convert to fraction form
    2,277.20/3,144.68 = 2,154.48/x
  3. Step 3: Cross multiply
    2,277.20x = 3,144.68 × 2,154.48
  4. Step 4: Simplify right side
    2,277.20x = 6,775,150.17
  5. Step 5: Solve for x
    x = 6,775,150.17/2,277.20
  6. Step 6: Final answer
    x = 2,975.21

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1.5x scale

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.