Home / 2,425.52-3,638.68-2,180.64

Finding the Fourth Proportional to 2,425.52, 3,638.68 and 2,180.64

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Solution

The fourth proportional to 2,425.52, 3,638.68 and 2,180.64 is: 3,271.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,425.52 : 3,638.68 = 2,180.64 : x
  2. Step 2: Convert to fraction form
    2,425.52/3,638.68 = 2,180.64/x
  3. Step 3: Cross multiply
    2,425.52x = 3,638.68 × 2,180.64
  4. Step 4: Simplify right side
    2,425.52x = 7,934,651.16
  5. Step 5: Solve for x
    x = 7,934,651.16/2,425.52
  6. Step 6: Final answer
    x = 3,271.32

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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.