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Finding the Fourth Proportional to 1,857.10, 2,786.73 and 882.67

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Solution

The fourth proportional to 1,857.10, 2,786.73 and 882.67 is: 1,324.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.10 : 2,786.73 = 882.67 : x
  2. Step 2: Convert to fraction form
    1,857.10/2,786.73 = 882.67/x
  3. Step 3: Cross multiply
    1,857.10x = 2,786.73 × 882.67
  4. Step 4: Simplify right side
    1,857.10x = 2,459,762.97
  5. Step 5: Solve for x
    x = 2,459,762.97/1,857.10
  6. Step 6: Final answer
    x = 1,324.52

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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.