Home / 2,853.10-3,950.40-2,707.30

Finding the Fourth Proportional to 2,853.10, 3,950.40 and 2,707.30

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Solution

The fourth proportional to 2,853.10, 3,950.40 and 2,707.30 is: 3,748.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.10 : 3,950.40 = 2,707.30 : x
  2. Step 2: Convert to fraction form
    2,853.10/3,950.40 = 2,707.30/x
  3. Step 3: Cross multiply
    2,853.10x = 3,950.40 × 2,707.30
  4. Step 4: Simplify right side
    2,853.10x = 10,694,917.92
  5. Step 5: Solve for x
    x = 10,694,917.92/2,853.10
  6. Step 6: Final answer
    x = 3,748.53

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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.