Home / 2,011.78-2,781.39-1,516.96

Finding the Fourth Proportional to 2,011.78, 2,781.39 and 1,516.96

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Solution

The fourth proportional to 2,011.78, 2,781.39 and 1,516.96 is: 2,097.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.78 : 2,781.39 = 1,516.96 : x
  2. Step 2: Convert to fraction form
    2,011.78/2,781.39 = 1,516.96/x
  3. Step 3: Cross multiply
    2,011.78x = 2,781.39 × 1,516.96
  4. Step 4: Simplify right side
    2,011.78x = 4,219,257.37
  5. Step 5: Solve for x
    x = 4,219,257.37/2,011.78
  6. Step 6: Final answer
    x = 2,097.28

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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.