Home / 2,519.79-3,766.43-2,188.10

Finding the Fourth Proportional to 2,519.79, 3,766.43 and 2,188.10

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Solution

The fourth proportional to 2,519.79, 3,766.43 and 2,188.10 is: 3,270.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.79 : 3,766.43 = 2,188.10 : x
  2. Step 2: Convert to fraction form
    2,519.79/3,766.43 = 2,188.10/x
  3. Step 3: Cross multiply
    2,519.79x = 3,766.43 × 2,188.10
  4. Step 4: Simplify right side
    2,519.79x = 8,241,303.92
  5. Step 5: Solve for x
    x = 8,241,303.92/2,519.79
  6. Step 6: Final answer
    x = 3,270.63

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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.