Home / 2,162.88-3,225.36-2,144.40

Finding the Fourth Proportional to 2,162.88, 3,225.36 and 2,144.40

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Solution

The fourth proportional to 2,162.88, 3,225.36 and 2,144.40 is: 3,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162.88 : 3,225.36 = 2,144.40 : x
  2. Step 2: Convert to fraction form
    2,162.88/3,225.36 = 2,144.40/x
  3. Step 3: Cross multiply
    2,162.88x = 3,225.36 × 2,144.40
  4. Step 4: Simplify right side
    2,162.88x = 6,916,461.98
  5. Step 5: Solve for x
    x = 6,916,461.98/2,162.88
  6. Step 6: Final answer
    x = 3,197.80

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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.