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Finding the Fourth Proportional to 1,857.91, 2,786.90 and 883.82

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Solution

The fourth proportional to 1,857.91, 2,786.90 and 883.82 is: 1,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.91 : 2,786.90 = 883.82 : x
  2. Step 2: Convert to fraction form
    1,857.91/2,786.90 = 883.82/x
  3. Step 3: Cross multiply
    1,857.91x = 2,786.90 × 883.82
  4. Step 4: Simplify right side
    1,857.91x = 2,463,099.60
  5. Step 5: Solve for x
    x = 2,463,099.60/1,857.91
  6. Step 6: Final answer
    x = 1,325.74

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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.