Home / 2,469.75-3,688.34-2,197.59

Finding the Fourth Proportional to 2,469.75, 3,688.34 and 2,197.59

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Solution

The fourth proportional to 2,469.75, 3,688.34 and 2,197.59 is: 3,281.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,469.75 : 3,688.34 = 2,197.59 : x
  2. Step 2: Convert to fraction form
    2,469.75/3,688.34 = 2,197.59/x
  3. Step 3: Cross multiply
    2,469.75x = 3,688.34 × 2,197.59
  4. Step 4: Simplify right side
    2,469.75x = 8,105,448.11
  5. Step 5: Solve for x
    x = 8,105,448.11/2,469.75
  6. Step 6: Final answer
    x = 3,281.89

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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.