Home / 2,529.50-3,791.42-1,911.20

Finding the Fourth Proportional to 2,529.50, 3,791.42 and 1,911.20

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Solution

The fourth proportional to 2,529.50, 3,791.42 and 1,911.20 is: 2,864.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,529.50 : 3,791.42 = 1,911.20 : x
  2. Step 2: Convert to fraction form
    2,529.50/3,791.42 = 1,911.20/x
  3. Step 3: Cross multiply
    2,529.50x = 3,791.42 × 1,911.20
  4. Step 4: Simplify right side
    2,529.50x = 7,246,152.35
  5. Step 5: Solve for x
    x = 7,246,152.35/2,529.50
  6. Step 6: Final answer
    x = 2,864.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.