Home / 2,519.10-3,474.50-1,679.40

Finding the Fourth Proportional to 2,519.10, 3,474.50 and 1,679.40

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Solution

The fourth proportional to 2,519.10, 3,474.50 and 1,679.40 is: 2,316.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.10 : 3,474.50 = 1,679.40 : x
  2. Step 2: Convert to fraction form
    2,519.10/3,474.50 = 1,679.40/x
  3. Step 3: Cross multiply
    2,519.10x = 3,474.50 × 1,679.40
  4. Step 4: Simplify right side
    2,519.10x = 5,835,066.90
  5. Step 5: Solve for x
    x = 5,835,066.90/2,519.10
  6. Step 6: Final answer
    x = 2,316.33

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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.